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Q.

In the shown arrangement if f1 , f2 and T be the frictional forces on 2kg block, 3kg block & tension in the string respectively, then their values are :
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a

2N, 6N, 0N

b

1N, 6N, 2 N

c

data insufficient to calculate the required values

d

2N, 6N, 3.2 N

answer is C.

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Detailed Solution

FBD
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Net force without friction on system is ‘7N’ in right side so first maximum friction will come on 3kg block
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So f2 = 1N, f3 = 6N, T = 2N

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