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A uniform rope lies on a table that parts of it lays over. The rope begins to slide when the length of the hanging part is 25% of entire length. The coffecient of friction between rope and table is (a)0.33 (b)0.25 (c) 0.5 (d)0.2

A uniform rope lies on a table that parts of it lays over. The rope begins to slide when the length of the hanging part is 25% of entire length. The coffecient of friction between rope and table is


(a)0.33    (b)0.25   (c) 0.5    (d)0.2

Grade:12th Pass

1 Answers

Chirrag Nangia
32 Points
11 years ago

Let m be mass per unit length and L be the length

force of friction on part kept on table = weight of hanging part

u*m*(3L/4)*g = m*(L/4)*g

u = 0.33

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