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Questions  

A man is holding a block of mass 2 kg against a vertical surface with a horizontal force of 50 N. Minimum force required, to slide the block along the surface in upward direction is

g=9.8m/s2,μ=0.04

a
2 N
b
19.6 N
c
17.6 N
d
21.6 N

detailed solution

Correct option is D

Fmin =mg+ Friction Fmin =19.6+0.04×50=21.6N

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