question_answer

A particle of mass M moves in a circular path of radius R under the action of a force \[F=\frac{M{{\nu }^{2}}}{R}\]. The work done by force F during its motion over half of the circumference of the circular path is

A)  zero                             

B)  \[\left( \frac{M{{v}^{2}}}{R} \right)\times \pi \,R\]

C)  \[\left( \frac{M{{v}^{2}}}{2} \right)\,\,\times \,\,2\pi \,R\]           

D)  None of these