Question

The direction of rotation of a pivoted body can be changed by changing:
(a) the direction of force
(b) the point of application of force
(c) both the direction of force and the point of application of force
(d) the magnitude of force

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Answer

(c) both the direction of force and the point of application of force

Reason — The direction of rotation of a pivoted body depends on both the direction of the applied force and the point at which the force is applied relative to the pivot point. Changing either or both of these factors can alter the direction of rotation of the body.

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