# A particle of mass m is moving in a horizontal circle of radius r under a centripetal force given by (-K/r^2 ), where K is constant. Then

Q: A particle of mass m is moving in a horizontal circle of radius r under a centripetal force given by (-K/r2 ), where K is constant. Then

(a) The total energy of the particle is (-K/2r)

(b) The total energy of the particle is zero

(c) The total energy of the particle is (-K/2r3)

(d) The kinetic energy of the particle is (-K/r)

Ans: (a)