Two blocks of masses M 1 and M 2 are connected with a string passing over a pulley as shown in figure. The block M 1 lies on a horizontal surface. The coefficient of friction between the block M 1 and the horizontal surface is µ. The system accelerates. What additional mass m should be placed on the block M 1 so that the system does not accelerate?
A
B
C
D
(M 2 – M 1 ) µ
Text Solution
Verified by ExpertsThe correct answer is:
B
System does not accelerate it M 2 g ≤ μ (M 1 +m) g
M 2 ≤ μ (M 1 + m)
or 
or 
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