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In the adjacent figure, x-axis has been ...

In the adjacent figure, x-axis has been taken down the inclined plane. The coefficient of friction varies with `x` as `mu=kx`, where `k= tan theta`. A block is released at `O`

Frictional force acting on the block after it comes to rest:

A

`mg sin theta`

B

`2 mg sin theta`

C

`(mg sin theta)/(2)`

D

`2mg cos theta`

Text Solution

Verified by Experts

The correct Answer is:
A

Rest `rArr` Downward pull `=` friction `:. f = mg sin theta`
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