A particle of mass π‘š is moving in a horizontal circle of radius π‘Ÿ, under a centripetal forceπ‘˜ π‘Ÿ 2β€² where π‘˜ is a constant.

Question : A particle of mass π‘š is moving in a horizontal circle of radius π‘Ÿ, under a centripetal forceπ‘˜ π‘Ÿ 2β€² where π‘˜ is a constant.

a) The potential energy of the particle is zero

b) The potential energy of the particle is k/r

c) The total energy of the particle is βˆ’k/2r

d) The Kinetic energy of the particle is βˆ’k/r

Answer : option (A)

Solution :

A particle of mass π‘š is moving in a horizontal circle of radius π‘Ÿ, under a centripetal forceπ‘˜ π‘Ÿ 2β€² where π‘˜ is a constant.


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