A body of mass 10 kg is lying on a rough inclined plane of inclination 37∘ and μ=12, the minimum force required to pull the body up the plane is

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80 N

100 N

120 N

60 N

answer is B.

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Detailed Solution

Fmin=mgsin⁡θ+μkcos⁡θ=10×9.835+12×45=98N If g=10ms−2Fmin=100N.

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