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A sphere of mass m rolls without slippin...

A sphere of mass m rolls without slipping on a plane inclined at `theta`. The linear acceleration of the sphere will be `5/7g sin theta`. The minimum value of `mu` for this to be possible is

A

`2/7 sin theta`

B

`2/7 cos theta`

C

`2/7 sqrt(sec^(2) theta-1)`

D

`2/7 sqrt("cosec"^(2) theta=1)`

Text Solution

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The correct Answer is:
C
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