A particle of mass $$m$$ is moving in a horizontal circle of radius $$r$$ under a centripetal force given by $$\left(-k / r^2\right)$$, where $$k$$ is a constant. Then
- Athe total energy of the particle is $$(-k / 2 r)$$
- Bthe kinetic energy of the particle is $$(k / r)$$
- Cthe potential energy of the particle is $$(k / 2 r)$$
- Dthe kinetic energy of the particle is $$(-k / r)$$
✓ Correct answer: A
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