A block of mass m is lying on an inclined plane. The coefficient of friction between the plane and the block is `mu`. The force `(F_(1))` required to

Monjur Alahi

A block of mass m is lying on an inclined plane. The coefficient of friction between the plane and the block is `mu`. The force `(F_(1))` required to move the block up the inclined plane will be:-
A. `mg sin theta+mumg cos theta`
B. `mg cos theta-mumg sin theta`
C. `mg sin theta-mumg cos theta`
D. `mg cos theta+mumg sin theta`


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Correct Answer - A
`F_("req")=mg sin theta+mu mg cos theta`

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