Question

A mass is moving in a circular motion with constant speed .what is the work done in 3/4th of a rtation

Answer 1

I think

since it is moving in the circular path and in 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 it. Thus, no work is done by the mass whatever the displacement may be.!!

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