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A block A of mass M rests on a wedge B o...

A block A of mass M rests on a wedge B of mass 2M and inclination `theta`. There is sufficient friction between A and B so that A does not slip on B. If there is no friction between B and ground, the compression in spring is

A

`(M g cos theta)/(K)`

B

`(M g cos theta sin theta)/(K)`

C

`(Mg sin theta)/(K)`

D

zero

Text Solution

Verified by Experts

The correct Answer is:
D
For system to be at rest kx = 0 as there is no other external force on the system
`implies x = 0`
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