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A coin of mass m is placed on a horizont...

A coin of mass `m` is placed on a horizontal platform which is undergoing `S.H.M.` about a mean position `O` in horizontal plane. The force of friction on the coin is f. while the coin does not slip on the platform `f` is

A

directed towards `O` always.

B

directed away form `O` always

C

directed towards `O` when the coin moves in wards

D

maximum when coin and platform are at rest

Text Solution

Verified by Experts

The correct Answer is:
A, C, D
Frictional force gives centripetal acceleration
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