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A particle of mass m is moving in a circ...

A particle of mass m is moving in a circular path of constant radius r such that its centripetal acceleration `a_(c)` is varying with time t as `a_(c) = k^(2)rt^(2)`, where k is a constant. The power delivered to the particle by the forces acting on it is :

A

`2 pi mk^(2) r^(2)t`

B

`mk^(2) r^(2) t`

C

`(mk^(4) r^(2) t^(5))/(3)`

D

zero

Text Solution

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The correct Answer is:
B
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