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A box of mass 8 kg placed on a rough in...

A box of mass `8 kg ` placed on a rough inclined plane of inclination `theta` its downward motion can be prevented by applying an upward pull `F` and it can be made to slide upward appliying a force `2F` .The coefficient of friction between the box and the inclined plane is

A

`1/3 tan theta`

B

`3 tan theta`

C

`1/2 tan theta`

D

`2 tan theta`

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The correct Answer is:
A
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