Two blocks of mass 
and 
are connected with a string passing over a pulley as shown in the figure. The block 
lies on a horizontal surface. The coefficient of friction between the block M 1 and horizontal surface is μ μ . The system accelerates. What additional mass m should be placed on the block 
so that the system does not accelerate
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
By comparing the given condition with general expression
⇒ ⇒ 
⇒ ⇒ 
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