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Question

A block is placed on a rough horizontal surface. The minimum force required to slide the block is ( μ is coefficient of friction between the contacting surface)

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Solution

REF.Image.
Solution
minimum force required
to move it will be
equal to the sliding
friction b/w the blank and the surface
fs (sliding friction) = μN
Here,
N = Mg so,
fs=μMg
Thus, the minimum force required
will be μ times the weight
of block.

1143075_1164383_ans_6e9235f6e5184d6fa74eab043fc3bdba.jpg

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