A body of mass `m` is moving along a circular path of radius `R` such that its kinetic energy at any instant is `k=k_(0)((t)/(t_(0)))^(2)`
where `t_(0)` is an appropriate constant. Then

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 force acting on its is

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 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 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 particle of mass m is moving in a circular path of constant radius r such that its centripetal acceleration a_(c) is varying with the time t as a_(c)=k^(2)r^(3)t^(4) where k is a constant. The power delivered to the particle by the forces acting on it is

A particle of mass m 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.