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Questions  

A block of mass 2 kg rests on a rough inclined plane making an angle of 300 with the horizontal. If μs = 0.6 , what is the frictional force on the block ?

a
9.8N
b
19.6N
c
14.7N
d
4.9N

detailed solution

Correct option is A

0.6×9.8×3mgsinθ=2×9.8×12=9.8fs>mgsinθfriction = mgsinθ = 9.8N

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