How to find line of action of resultant force Resultant forceLine of Actionx bary barminimal distanceMomentsHow to find the location of the line of action of a resultant force using the moment equations? Through z draw a line parallel to ad in the force diagram to represent the line of action of the vector of the resultant force F R. Multiple forces that act at a point sum to a resultant force that acts at that point. Before finding the resultant force, the given distributed Breaking down a force into its Cartesian coordinate components (e. 11-2C Yes, because the magnitude of the resultant force acting on a plane surface of a completely submerged body in a The video is all about How to find resultant Force of Perpendicular Forces and to determine the magnitude and coordinate direction angles of the resultant force but also include the following Unlike coplanar, concurrent force systems, Parallel Force Systems cannot be completely resolved using the methods described above. Characteristics Of A Force The characteristics or elements of the force are the quantities by which a force is fully represented. For a rectangular loading, the centroid is in the center. 3. Determine the resultant hydrostatic force acting on the surface Surface is 1 m long (normal to page) B Water Apr 10, 2021 · Two forces F at O cancel each other while the resultant of F1 and F2 is obtained as the forces F1 + F2, since both the forces act in the same direction and along the same line of action. The vertical location of the line of action is determined by equating the moment of the resultant force to the moment of the distributed pressure force about the x -axis. Forces acting at some angle from the the coordinate axes can be resolved into mutually perpendicular forces called components. 2) Resultant Moment of a System of Coplanar Force The resultant moment, MRo of a system can be determined by adding the moment of all forces action on the system. This can be done by resolving all of the forces horizontally and vertically and then treating their horizontal sum as X and their vertical sum Jul 16, 2022 · Learn how to calculate the resultant force of two forces using physics principles and formulas explained in an easy-to-understand manner. The diagram above shows a uniform rectangular plate supported in a vertical plane by forces acting at three corners of the Calculate the magnitude, direction and position of the line of action of the resultant and equilibrant of the nonconcurrent force system shown below. Here, a negative sign indicates that the angle made by the resultant force is from negative x -axis in clockwise direction. Young 14th Edition Instant Answer Solved by Expert Paul Gabriel Step 1 A moment of force, or torque, is a measure of the tendency of that force to rotate a body about a selected point or axis, called the moment center. 2. 23 reduces to an algebraic sum of the moments. Answers Worked Solutions Finding magnitude and direction of the resultant force (and related acceleration) By combining the effect of several forces in 2 dimensions, we can find a single resultant force. 2 days ago · The line of action of the resultant force intersects the lines of action of its components at the point where the forces act. A force of 280N and a force of 320N are acting on an object. Why Do We Calculate Resultant Force? The reason for calculating resultant force is that it allows us to think of all the forces acting on an object as one single force. Task 1 Using the table given, determine the magnitude, direction and sense of the resultant and equilibrant forces acting on the above component and the perpendicular distance of their line of action from the point A. 2K subscribers Subscribe In this Lecture i have explain in detail about equation of line of action of the resultant, which is most important topic of our current chapter. To find the moment of this force about point C, we need to know its moment arm designated as d c. Mechanical Principles. Hence, the magnitude and direction of the resultant force are found as Now by summing moments about point O we will find the line of action (or axis) of the resultant force. Proceed by finding the point of intersection of this resultant force's line of action and the line of action of one of the remaining original forces. calculate the magnitude, direction and position of the line of action of the resultant and equilibrant of a non-concurrent coplanar force system containing a minimum of four forces acting in different directions Consider the beam shown, with four point loads and a uniformly distributed load; 15 KN 10 KN 8 KN UDL 3 km 1. This problem is solved by combing the Oct 23, 2021 · Now if we are to predict its resultant we would just find their resultant considering the two force acting acting at their point of intersection and extend that upto the pen. The distance between their lines of action is 90 cm. In the case of a coplanar (two-dimensional) force system, Eq. Line of action that passes through the centroid of the distributed load distribution. Step 3 Now, to calculate the distance where the line of action of the single resultant force intersects the post AB measured from point B, we have: Hydrostatic Forces on Curved Surfaces Analysis is for liquids: Pressure increases linearly with depth Gauge pressure distribution for incompressible fluids: Recall that pressure acts normal to bounding surface Goals of the analysis: Calculate the resultant forces on the surface: Locate the line of action of each force Hydrostatic Forces on Sep 3, 2008 · Homework Statement Determine the resultant of the system and the x- and y- intercepts of its line of action. 1 point (s) possible. Example, find an equivalent system of forces acting on B. Again apply the parallelogram of forces method. How can you find the resultant force of a force system? Finding the resultant force in a force system can certainly present itself as difficult, but in practice, it involves some simple, straightforward steps that can be applied across the most complicated scenarios. The point of application of this resultant force is called the center of pressure. Determine the magnitude, direction, and line of action of the horizontal component of hydro static force acting on the surface c. Given that the line of action of the resultant of the forces is passing through the point 퐸, where 퐸 ∈ line segment 퐴퐵 and 퐴퐸 = 4 cm, determine the magnitude of 퐹. When two different forces act on the same object, we can find the resultant force acting on the object by adding the two separate forces. The line of action of the equivalent force acts through the centroid of area under the load intensity curve. However, when there are hinges in the field of a distributed load, you may not always replace the entire distributed load by a resultant force, but have to split the distributed load up in two parts, and find a resultant force for every separate part. Some simplifications we can do in particular cases Ready to add forces? Concurrent forces addition When a body is submitted to the action of two or more forces (system of forces), their effects can be replaced by the action of a single force called resultant force. We talk about the line of action, breaking forces into components and Forces acting on the same straight line A force is a vector quantity, i. 7 Simplification of a Force and Couple System When a series of forces and couple moments are acting on a body, it is convenient to reduce them to a simpler form with an equivalent system, which consists of a single resultant force and a single resultant moment. Take M = 125. Step 2 Consider d be the distance where the single resultant force acting on the line of action intersects the vertical member AB and draw the schematic diagram as shown below, To calculate the resultant force along the horizontal direction, we have: May 3, 2023 · To be equivalent, the point force must have a: Magnitude equal to the the area or volume under the distributed load function. it has a size (or magnitude) and a direction. The process through we calculate the resultant force is called addition of forces. With the force on the link DE known, the sum of forces in the x and y directions may be used to find the force components at C. Vector Diagrams How to work out the resultant of two forces at an angle by using a vector diagram? Examples: Two forces are acting on an object. 00 lb•in. Since force is a sliding vector, it can be placed at any point along its line of action. Fx= F Cosθ, Fy= F Sinθ, vector addition of forces, conditions for static equilibrium (Σ Fx = 0, Σ Fy= 0, Σ M = 0), resultant, equilibrant, line of action Determine the line of action, sense, and magnitude of the resultant force of the following set of forces using the Parallelogram of Forces method. The moment 𝐌 of the force 𝐅 about the point 𝑃 is equal to four 𝐤. Statics B. The following diagram shows how to find the resultant of two forces. In Forces acting at some angle from the the coordinate axes can be resolved into mutually perpendicular forces called components. They are : F1 = (4,5) applied at (1,2) F2 = (2,-1) applied at (3,-1) F3 = (-3, 2) applied at (-2,1) i) Find the resultant force Answer : R = (3,6) ii) Find the total moment about the origin (This i know how to do) iii) The line of See full list on phyley. By mastering these techniques, you'll be able to determine the magnitude, direction, and line of action of resultant forces for various force systems, including concurrent and coplanar forces. 1m long You can move a force to a new line of action in an equivalent fashion if you add a “compensatory couple” to undo the effect of changing the line of action. Draw a vector diagram to find the resultant force. We can find the total or resultant force, R, on the plane by summing up all of the forces on the small elements i. The line of action of the forces at point F and point C intersect at X. The point of intersection of the line of action of the resultant force and the surface is the center of pressure. These are: Magnitude (i. This can be accomplished with of a series of individual equivalent transformations as shown in the diagram below. The force exerted by the link DE has a known line of action but unknown magnitude. 13). , 50 N, 100 N,… etc. 5 m 1 Apr 12, 2022 · The force has a magnitude and direction, therefore, it is a vector. The resultant is a representative force which has the same effect on the body as the group of forces it replaces. This formula is fundamental in the study of dynamics, which is the branch of physics concerned with the motion of objects influenced by This physics video tutorial explains how to find the resultant of two vectors. Determine their resultant 𝑅 and the distance 𝑥 between its line of action and point 𝐴. Discuss how to calculate the line of action of the resultant force for the case of a cylindrical plate Do an example problem Oct 14, 2015 · Homework Statement I'm having problem of finding the point where the line of action intersect with CD , hot to do it ? Fx = -500cos60 - 250 (4/5) Fy = 300 + Line of action The line of action is shown as the vertical dotted line. 12. The defining feature of a resultant force, or resultant force-torque, is that it has the same effect on the rigid body as the original system of forces. b. The magnitude of the resultant of a parallel force system is equal to the algebraic sum of the components. This resultant force will act through the centre of pressure, hence we can say The line of action of the force at point C is known because it must be equal and opposite to the force C of the two-force member CB. \ [\overrightarrow {R} = \overrightarrow {F_1} + \overrightarrow {F_2} + \overrightarrow {F Force vector: This technique only allows you to find the moment for one force at a time. It is known that, Pc = Pave and Patm can be assumed as Po. There is an angle of Resultant Definition The resultant of a system of forces is a system comprising a single force, equivalent to the given system. In this case, point B is along the line of action of the force at A. In this video, we will learn how to find the resultant of two forces acting on one point and how to find the direction of the resultant. 1) M = r × F, where F is the force creating the moment, and r is a position vector from the moment center to the line of action of the force. This contains the magnitude of the combined forces and the direction the vectors are acting in total. Sc. 57 N at an angle of 4. How to find line of action of resultant force in fluid mechanics Added by Javier A. If A and B are expressed in Cartesian vector form, then the dot product is the sum of the products of their , , and components. Non-concurrent coplanar force systems: graphical representation e. Example 1: Calculate the resultant and its line of action for the the two forces F1 = 2 i + j N applied at point (1, 0) and F2 = − 3 i + 3 j N applied at point (0, 0). The resultant force is shown as the dashed vector. 5 m 1 Oct 24, 2025 · Learn about resultant forces for your IGCSE Physics exam. Note: Use corner A, as your datum for all calculations (i e determine the perpendicular distance of the line of action of the resultant / equilibrant from corner A) The force on each elemental area is always normal to the surface but, in general, each force is of different magnitude as the pressure usually varies. Since this new couple moment is a “free” vector, it can be applied at any point P on the body. This location is known as the center of pressure (CP). The illustration shows two vectors and their resultant. This will always be a line perpendicular to the line of action of the force, going to the point about which we are taking the moment. ENTER 3 tries remaining. 15° from the horizontal. To find the Resultant (and therefore also the Equilibrant) of two non-aligned forces acting at a point a Parallelogram of Forces can be used. If this distance is not readily available, then it is easier to apply the principle of moments. Two force vectors can be added to find their resultant force using the Parallelogram Law. Given that the two forces are acting in opposite directions, determine the resultant 𝑅 and the distance 𝑥 between its line of action and point 𝐴. May 3, 2023 · Moment Cross Products The most robust and general method to find the moment of a force is to use the vector cross product (4. This tendency increases with the magnitude of the force, and also with the distance between the line of action of the force and the moment center. Now we are asked to calculate the length of the perpendicular line 𝐿 joining the point 𝐵 to the resultant’s line of action. LOCATION OF THE RESULTANT FORCE The force dF will produce a moment of (x)(dF) about point O. It extends in both directions relative to the force vector, but is most useful where it defines the moment arm. Hence, a force vector is called a sliding vector. May 3, 2023 · Key Questions What is an equivalent system? What is a resultant force? What is a resultant moment? Do you have to include both r × F moments and couples to find the resultant moment? How can you find the simplest equivalent system? When will the simplest equivalent system be a wrench? How can you determine if two loading systems are statically equivalent? A loading system is a combination of As shown in the diagram above, the center of pressure is the point of intersection of the line of action of the resultant force and the surface. To find the resultant of two forces, you need to consider both their magnitudes and their directions. The three problems solved are found in the Further simplification of a force and couple system in Chapter 4: Force System Resultants Applications Carpenters often use a hammer in this way to pull a stubborn nail. Straight Line For vectors acting in a straight line, the resultant vector is the sum of the vectors in one direction subtracted with the sum of the vectors in the other direction. Now slowly imagine the two forces becoming more and more parallel. This problem is solved by combing the two component vectors to form a single final resultant force by using the Rectangular Method Remark: the resultant moment of forces is a moment acting about a point (or axis). How To Calculate Resultant Force Moment and Draw the Line of Action. It means to know the effect that the forces had on the object. Through what sort of action does the force FH at the handle pull the nail? How can you mathematically model the effect of force FH at point O? Hence, the magnitude and direction of the resultant force are found as Now by summing moments about point O we will find the line of action (or axis) of the resultant force. In order to resolve these forces graphically, one must first extend the lines of action of two concurrent forces until they intersect. We are assuming that the resultant force is to the right of point O as shown above. One force has a magnitude of 10N and the other force has a magnitude of 8N. The task is to reduce the two forces into a single net force and then find the equation of its line of action. The statically equivalent system is found by adding two equal and opposite forces at point B such that each has the same magnitude as the original Here m. Not that the front and rear tracks are In general, determining the magnitude of the moment of a force about an specified axis needs finding a plane containing the line of action of the force and perpendicular to the axis of interest, and then finding the moment arm of the force in the plane (Fig 3. [1] Calculating Points 𝐴, 𝐵, 𝐶, 𝐷, and 𝐸 are lying on the same straight line, such that 𝐴𝐵 = 8 cm, 𝐵𝐶 = 18 cm, 𝐶𝐷 = 12 cm, and 𝐷𝐸 = 11 cm. For forces acting on the same straight line, this is quite easy: Drawing a scale diagram to find the resultant In this video, we will learn how to find the resultant of a system of parallel coplanar forces and how to locate its point of action. The moment center is at an arbitrary point , A, and the line of action of force F passes through arbitrary points P 1 and . Includes several worked examples. Utilize a magnitude of resultant force calculator physics to determine the net force accurately. The next two sections will explore how to find the magnitude and location of the equivalent point force for a distributed load. This revision note includes the effects of forces and calculating resultant forces. Vectors are drawn to represent the two forces from any point O as before then lines are drawn parallel to them to complete a parallelogram as shown. Suppose that multiple forces act at a point, such as in the figure below. Five forces of magnitudes 40, 25, 20, 45, and 50 newtons are acting as shown in the figure. It gives: Vectors can be added in order to calculate a resultant vector. e. Note, although the resolution of forces and systems of forces by graphical methods is simple and straightforward, the accuracy depends on the scale of the drawing and the quality of the draughtsmanship. 00 lb•in Graphical placing of the resultant force In physics and engineering, a resultant force is the single force and associated torque obtained by combining a system of forces and torques acting on a rigid body via vector addition. P 2 The position vector r is the vector from A to a point on the line of action, and the force F can be slid anywhere along that line. 2019 Jun 3, 2009 · Three forces are applied to a body. 3. Both of these must be taken into account when combining forces to produce their resultant. The resultant force is the vector sum between the components (if the equation is not displayed correctly RELOAD the page): \ [\overrightarrow {R} = \overrightarrow {F_1} + \overrightarrow {F_2}\] If there are several forces acting on the same point, we can apply the polygon rule to find their resultant. com Mar 23, 2023 · 2 If the two forces are not exactly parallel, then the line of action of the resultant will go through the point the two lines of action meet regardless of the magnitude of the forces. This is only necessary when you make a cut through the hinge though, but there may be a very few small exceptions to this rule. 11-2C Yes, because the magnitude of the resultant force acting on a plane surface of a completely submerged body in a Dot Product (specify the forces by angle which oriented the line of action) The dot product between two vectors A and B yields a scalar. We draw rays from this pole to the nodes on the Load Line. This moment conveys the collective rotational tendencies of the forces about an specific point (or axis). Calculate the y component of the resultant force at A, (FAy) N. Both forces, as well as the resultant, must ALL act either away from or toward the point The second interactive shows a more realistic situation. With member ACE as a free-body, check the solution by summing moments about A. It is determined by summing moments about C. Direct Link to The Full Video: https://bit. The line of action of the resultant force intersects the lines of action of its components at the point where the forces act. Learn about moments or torque, how to find it when a force is applied at a point, 3D problems and more with animated examples. It’s the vector sum of the two forces. Two parallel forces have magnitudes of 24 N and 60 N as shown in the figure. The total moment about point O is given as + MRO = L x dF = 2 days ago · You may already be familiar with the moment of a force defined as a scalar given by the product of the magnitude of the force with the perpendicular distance between the line of action of the force and the point about which the moment is taken: 𝑀 = 𝐹 𝑑. Indeed, changing the location of the pivot point changes the resultant moment of the forces. 6506j b) Location of the resultant force - Locate the points where the line of action of the resultant intersects the line AB and line BC. Let's slide it up to point B, and break it . The line of action of a force or a force vector is a line that is collinear with the force vector (arrow representing the force). The angle between the two forces is 30°. 57 N at an angle of 184. Its vertical location can be determined by equating the moment of the resultant force to the moment of the distributed pressure force about the x-axis. But how are we sure about that? Apr 10, 2021 · Two forces F at O cancel each other while the resultant of F1 and F2 is obtained as the forces F1 + F2, since both the forces act in the same direction and along the same line of action. The resultant of two forces is the single force that has the same effect as the two individual forces acting together. The user successfully determined the components of the resultant force but struggled with how to apply the given point A to find the moment (M). Show your work for each step. Answer: R = - 27. Apr 29, 2015 · The force on the centroid can be calculate by analyzing Figure 2. For forces acting in the same direction and having the same line of action, the single force having the same effect as both of the forces, called the resultant force or just the resultant, is the arithmetic sum of the separate forces. Like any vector, a force vector can be resolved into its Cartesian components using the CVN, A couple of magnitude M and the three forces shown are applied to an angle bracket as illustrated. University Physics with Modern Physics Hugh D. The component of a force parallel to the x-axis is called the x-component, parallel to y-axis the y-component, and so on. The diagonal to this parallelogram is the line of action of the missing resultant or equilibrant and it Jul 4, 2024 · Resultant Force Formula – Formula, Applications, Example Problems What is Resultant Force Formula? The Resultant Force Formula is a crucial equation in physics that allows us to calculate the single force acting on an object when multiple forces are at play. We know the vertical and horizontal coordinates of this centroid, but since the equivalent point force’s line of action is vertical and we can slide a force along its line of action, the vertical coordinate of the centroid is In this video, we find resultant force for all the forces shown. Calculate the magnitude of the resultant moment at A with direction, (Ma) N m. We know that a force, or a system of forces, can have a rotational effect on a body, which is described by the moment of the force, or the system of forces, about a point. The complete description of the resultant hydrostatic force acting on a submerged surface requires the determination of the magnitude, the direction, and the line of action of the force A plate exposed to a liquid is subjected to fluid pressure distributed over its surface Task 1 Calculate the magnitude, direction and position of the line of action of the resultant and equilibrant of a nonconcurrent coplanar force system containing a minimum of four forces acting in different directions. (A couple is an exception to this) It, as one single force, can represent any number of forces and is very useful when resolving multiple groups of forces. The magnitude o In this explainer, we will learn how to find the resultant of a group of forces acting at a point. 2 days ago · In this explainer, we will learn how to find the resultant of a system of parallel coplanar forces and how to locate its point of action. Lesson Explainer: Triangle of Forces Mathematics • Second Year of Secondary School In this explainer, we will learn how to solve problems about the equilibrium of a particle under the action of three forces meeting at a point using the resultant of forces or triangle of force method. Remember that every force is defined to have a magnitude, a direction and a line of action. Section 4. Essentially, it is equal in magnitude but opposite in direction to the resultant force. In this video lecture, I have explained the methodology of determining the magnitude and line of action of resultant force on a beam. 퐴퐵퐶퐷 is a square having a side length of 6 cm. 2 On Submerged Curved Surfaces Calculate the magnitude, direction and position of the line of action of the resultant and equilibrant of a nonconcurrent coplanar force system containing a minimum of four forces acting in different directions. 5 m 3. ly/3ifmoremore Step 2 Consider x and d be the horizontal and vertical distance respectively, where the single resultant force acting on the line of action intersects the horizontal member CB as shown in the figure below, To calculate the resultant force along the horizontal direction, we have: Apr 26, 2025 · Line of Action of Resultant: The position of the resultant is determined by calculating the moment of all forces about a reference point and ensuring the resultant produces the same moment. Case 1: Equivalent Force at an Arbitrary Point Along the Same Line of Action: Let's represent (replace) the force acting at point A by a statically equivalent system at point B. In this example, we find a resultant force vector using geometry, specifically the laws of sines and the laws of cosines. Consider, however, the forces shown in the following figure. ) Direction or line of action (angle relative to a coordinate system). To find the location of the resultant’s line of action, we begin by establishing a pole, o, at any convenient location near the Load Line. Description In this video, we find the resultant force, location angles and direction from the given component vectors. Consider force acting along the line passing through points A and B. The cross product is a vector multiplication operation and the product is a vector perpendicular to the vectors you multiplied Mar 7, 2012 · The discussion centers on calculating the resultant force and its line of action in a mechanics problem. The distance we need to use for the scalar moment calculation, however, is the shortest distance between the point and the line of action of the force. The equilibrant force is 82. M Ro = ∑ Fd Resultant of a force system is a force or a couple that will have the same effect to the body, both in translation and rotation, if all the forces are removed and replaced by the resultant. a) Resultant force - Determine the resultant of the three forces, in pound-force, if M = 125. Fluid Statics: Hydrostatic Forces on Plane and Curved Surfaces 11-1C The resultant hydrostatic force acting on a submerged surface is the resultant of the pressure forces acting on the surface. The resultant force due to several forces \ ( \vec {F}_1, \vec {F}_2, \) acting on an object is the force \ ( \vec {R}f \) that has the same physical effects as the different forces acting on that object. Therefore, the magnitude of the resultant force acting on a plane surface of a completely submerged plate in homogeneous fluid is equal to the product of the pressure Pc at the centroid of the surface and the area A of the surface. Equilibrant Force: The equilibrant force is the force that, when added to the resultant force, brings the system into equilibrium. This is equivalent to finding the perpendicular distance between the pivot point 𝐵 and the line of action of the force. I chose to find the net force and momentum with respect to the origin. These will be demonstrated here using a two-dimensional problem involving co-planar forces. Moving a force from A to O, when both points are on the vectors’ line of action, does not change the external effect. Sense or nature (push or pull). How to find the equation of the line of action of the resultant force using moment of a force. The result of this process is the equivalent force-couple system shown in diagram (d), which is statically equivalent to Fluid Statics: Hydrostatic Forces on Plane and Curved Surfaces 11-1C The resultant hydrostatic force acting on a submerged surface is the resultant of the pressure forces acting on the surface. The result of this process is the equivalent force-couple system shown in diagram (d), which is statically equivalent to Dot Product (specify the forces by angle which oriented the line of action) The dot product between two vectors A and B yields a scalar. While sliding a force along its line of action is fine, moving a force to another point changes its line of action and thus its rotational effect on the object, so moving a force to a new line of action is not an equivalent transformation. space and free body diagrams; resolution of forces in perpendicular directions e. Question: 2. The process for resolving a force applied at one point on a body into a force and a moment acting on another point, using the concept of couples. In physics, the line of action (also called line of application) of a force (F→) is a geometric representation of how the force is applied. Both forces, as well as the resultant, must ALL act either away from or toward the point This result is expected, as every element of the pressure force is perpendic-ular to the arc, so that the line of action of the resultant is through the pivot, and there is no moment, the reason for using radial gates. Vectors can be added in order to calculate a resultant vector. 18). Now the point at which the resultant intersects with the pen will be considered to be the point of action of the resultant. 4 days ago · In this explainer, we will learn how to find the moment of a planar system of forces acting on a body about a point as a vector. , Fx, Fy) and using Cartesian components to determine the force and direction of a resultant force are common tasks when solving statics problems. Point of application Representation Of Forces Oct 24, 2025 · Learn about resultant forces for your IGCSE Physics exam. Question: Calculate the magnitude, direction (horizontal and vertical components are acceptable) and the line of action of the resultant force exerted by the water on the cylindrical gate 9. I A question: does every system of forces have a resultant? Two forces that have the same line of action produce the same external effect (i. It gives: The resultant force is 82. 2nd Year | How to find Equation of Line of action of Resultant Force | Lecture-8 Unique Mathematics 23. If you had multiple concurrent forces, you could find the resultant force first before taking the moment about the line of interest. translation or rotation) on the body because they have the same net force and moment about any point. This intersection is known as the point of origin for the system. 5i + 11. Aug 28, 2024 · How to calculate beam reactions with 3 point loads and a UDL. 4. Since d, is found to be positive, the assumed position for the resultant axis is correct. In this video you will learn how to simplify a force and moment system and find line of action. Aug 30, 2022 · Now that we’ve determined the resultant pressure force on the right surface, let’s determine where this resultant force acts (Figure 2. MOVING A FORCE OFF OF ITS LINE OF ACTION Moving a force from point A to O (as shown above) requires creating an additional couple moment. g. Parallelogram Law Vectors are used to represent forces in space. xjxgb lafhs wjulvc fnzkqnwv qbkv omvm xmm gjeqi gnubeo sqlrds azxd pwkk ilqc umovyb zlz