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A ring of mass M and radius R is release...

A ring of mass `M` and radius `R` is released on an inclined as shown. If the coefficient of friction `mu lt 1/2 tan theta`, then during a displacement `l`:

A

Acceleration of the ring `=g//2sintheta`

B

Acceleration of the ring `=g sin theta-mug costheta`

C

work done by the force of friction `=mgl(sintheta-ucostheta)`

D

work done by the force of friction is zero

Text Solution

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The correct Answer is:
B
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