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Sliding Vector



If a vector acting at a given point of the rigid body is replaced by a vector of the same magnitude and direction, but acting at a different point in the line of action of the first vector without disturbing the equilibrium or motion of the rigid body, is called the sliding vector. Figure 1.10 shows a sliding vector F.

Here F’ replaces F, so vector F is shifted from 01 to 02 in the same line of action. We can write the principle of transmissibility of forces as “If a force, acting at a point on a rigid body is shifted to any other point which is on the line of action of the force, the external effect of the force on the body remains unchanged.