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block of mass 10 kg is kept on a rough i...

block of mass 10 kg is kept on a rough inclined plane of angle 30° and coefficient of friction between the surfaces is u = 0.2. The acceleration of the block when a force F = 10 N is applied upward along the plane as shown in figure is (Take `g = 10 ms^(-2) and sqrt3 = 1.7)`

A

`2.3 ms^-2` down the plane

B

`5 mo^-2` down the plane

C

`2.3 mo^-2` up the plane

D

Zero

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