In the arrangement shown in the figure, there is friction between the blocks of mass m and 2m. Block of mass 2m is kept on a smooth horizontal plane. The mass of the suspended block is m. If block A is stationary with respect to block B. The minimum value of coefficient of friction between m and 2m is:
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
mg = (4m) a
g = 4 × µg ⇒ µ = 
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