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A block of weight W is held in equilibrium against a vertical wall by applying a horizontal force of 75 N. The surface of the wall is rough. Now, (consider < l)
detailed solution
Correct option is A
If W is in equilibrium f = WBut we know f ≤ μRHere R = 75 NHence W ≤ μR or(W ≤ μ(75))or 75 ≥ Wμ⇒ 75 = Wμor 75 > WμBut μ is generally less than 1∴ W < 75 NTalk to our academic expert!
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