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In the shown diagram friction exits at e...

In the shown diagram friction exits at each contact surface with coefficient `mu` and the blocks are at rest. Then :

A

frictional froce between wedge and surface is `mg sin theta cos theta`

B

normal force by the surface is `(M+m)g`

C

friction force on m kg is `mg sin theta`

D

net force of m is zero

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The correct Answer is:
a,c,d
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