Question
A block of weight 1 N rests on an inclined plane of inclination θ with the horizontal. The coefficient of friction between the block and the inclined plane is μ. The minimum force that has to be applied parallel to the inclined plane to make the body just move up the plane is
1. μ sinθ 2. μ cosθ + sinθ
Read 1 Solution.
weight mg=1N
force required to make the body just move up = mgsinθ + f (represent friction)
mgsinθ + µR = mg sinθ + µmgcosθ = mg(sinθ +µcosθ) here mg=1N thus 2optn will be the answer
hint R=mgcosθ , resolve mg & find balance conditn
Best SolutionSARIKA SHARMA 11 year ago
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