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A body of mass m is moving along a circu...

A body of mass m is moving along a circular path of radius R such that at any instant the kinetic energy `K=K_(0)(t/(t_(0)))^(2)` where `t_(0)` and `k_(0)` are appropriate constants. Then

A

The magnitude of tangential component of force acting on it must be constat

B

The magnitude of cenripetal force acting on the body will be directly proportional to `t^(2)`

C

After al long time, the resultant force will make a very small angle with the radius

D

speed of the particle remains constant

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A, B, C
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