In case of circular motion a body , if tangential force also acts on the body in addition to centripetal force , then work done

Options

A. by both the force is zero
B. by both the force is positive
C. by centripetal force is zero but work done by the tangential force is not zero
D. by centripetal force is zero by work done by tangential force is not zero

Answer

C

Explanation

In circularmotion contripentad force in always perpendicular to instantanour displacement , where as tangential force in along the displacement