Block A of weight 100 kg rests on a block B and is tied with horizontal string to the wall at C. Block B is of 200 kg. The coefficient of friction between A and B is 0.25 and that between B and surface is 
. The horizontal force F necessary to move the block B should be (g = 10 m/s 2 ) -
Text Solution
Verified by ExpertsThe correct answer is:
D
F = µ 1 mg + µ 2 (M + m) g
= 0.25 (100) (10) + 
(300) (10) = 1250 N
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