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The force required to move a body up a r...

The force required to move a body up a rough inclined plane is double the foce required to prevent the body from slinding down the plane. The coefficient of friction, when the angle of plane is `60^(@)` is

A

`1/3`

B

`1/(sqrt(2))`

C

`1/(sqrt3)`

D

`1/2`

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The correct Answer is:
C
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