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In gravity-free space, a particle is in ...

In gravity-free space, a particle is in contact with the inner surface of a hollow vertical cylinder and moves in horizontal circular path along the surface. There is some friction between the particle and the surface. The retardation of the particle is

A

zero

B

independent of its velocity

C

proportional to its velocity

D

proportional to the square of its velocity

Text Solution

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The correct Answer is:
D
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