KEAM 2011 Physics and Chemistry Paper

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Question : 43 of 120

Marks: +1, -0

A particle of mass m is moving in a horizontal circle of radius r, under a centripetal force F=

k

r2

, where k is a constant

The potential energy of the particle is zero
The potential energy of the particle is −
k
r
The total energy of the particle is −
k
2r
The kinetic energy of the particle is −
k
r
The potential energy of the particle is −
k
2r

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