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is the angle between the force and path vector.
, which means that displacement vector (or path vector) should be perpendicular to the applied force.For example- A ball on a string spinning around in uniform circular motion. In this case, the centripetal force acting on the ball is perpendicular to its instantaneous velocity as well as instantaneous displacement. Therefore, the net work done on the ball by centripetal force is zero. 
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Give an example of a situation in which there is a force and a displacement, but the force does no w...
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