The moment M O of a force F of given magnitude and direction _ of F. The magnitude of M O measures the tendency of the force F to make the rigid body rotate about a fixed axis directed along M O.Īlthough the moment M O of a force about a point depends upon the magnitude, the LOA, and the sense of the force, it _ depend upon the actual position of the POA of the force along its LOA. The _ property holds with vector products. The _ property does not apply to vector products. The principle of transmissibility should be avoided or used with care, in determining. Two forces are said to be _ (have the same effect on a rigid body) if they have the same magnitude, direction and same LOA. Forces holding the component parts together. The _ are the forces which hold together the particles forming the rigid body. They will either cause it to move or ensure that it remains at rest. The _ represent the action of other bodies on the rigid body under consideration. įorces acting on rigid bodies can be separated into two groups: of the system or to a single couple called the. In the case of concurrent, coplanar, or parallel forces, the equivalent FCS can be reduced to a single force called the. The combination of two forces which have the same magnitude, parallel lines of action, and opposite sense.Īny system of forces acting on a rigid body can be replaced by an equivalent system consisting of one force acting at a given point and one couple called a. The moment of a force about a point and an axis Two important concepts associated with the effect of a force on a rigid body are. Actual structures and machines, are always absolutely rigid and never deform under the loads to which they are subjected.įorces acting on a rigid body can be represented by.
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