# A particle of mass M is moving along a circular path of constant radius R. The centripetal acceleration varies as a = K^2 R t^2, where K is constant and t is the time elapsed. What is the power delivered to the particle by the force acting on it?

Q: A particle of mass M is moving along a circular path of constant radius R. The centripetal acceleration varies as a = K2 R t222 , where K is constant and t is the time elapsed. What is the power delivered to the particle by the force acting on it ?

(a) $\frac{M}{4} K^2 R^2 t$

(b) $\frac{M}{2} K^2 R^2 t$

(c) $M K^2 R^2 t$

(d) $2M K^2 R^2 t$