A block of mass 10 kg is released on rou...

A block of mass 10 kg is released on rough incline plane. Block start descending with acceleration `2m//s^(2)`. Kinetic friction force acting on block is (take `g=10m//s^(2)`)

A

10 N

B

30 N

C

50 N

D

`50sqrt(3)` N

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The correct Answer is:

B

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