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A block of weight 1 N rests on a incline...

A block of weight 1 N rests on a inclined plane of inclination `theta` with the horizontal. The coefficient of friction between the block and the inclined plane is `mu`. The minimum force that has to be applied parallel to the inclined plane to make the body just move up the plane is

A

`mu sin theta`

B

`mu cos theta`

C

`mu cos theta - sin theta`

D

`mu cos theta + sin theta`

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