Question

A mass m is moving in a circular path with constant speed. What is the work done in 3/4th of rotation

Answer 1

Answer:

Explanation:

Since the mass is revolving in the circular path at a constant speed, it means it is in a uniform circular motion. The Centripetal force acting on the mass at any instant is perpendicular to the displacement of the mass. Thus, no work is done on the mass whatever be the displacement.