Three blocks are arranged as shown. ABCD is the horizontal plane. Strings are massless and both pulleys stands vertical while the strings connecting blocks m 1 and m 2 are also vertical and perpendicular to each other. The masses m 1 and m 2 are 3 kg and 4 kg respectively. Coefficient of friction between the block m 3 = 10 kg and surface is µ = 0.6, then -
A
The system of blocks can be in equilibrium
B
At equilibrium frictional force on block m 3 is 60 N
C
At equilibrium frictional force on block m 3 is 50 N
D
Total force applied by surface on block m 3 is 50 
N
N
Text Solution
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(a, c, d)
µm 3 g = 
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