In the arrangement shown, there is no friction between the 3 kg block and ground, but the coefficient of static friction between 2 kg block and 3 kg block is 0.8. If the blocks move together without any relative motion between them, then the frictional force acting on the 3 kg block is
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a
16 N
b
10 N
c
12 N
d
8 N
answer is C.
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Detailed Solution
a = Acceleration of the system of blocks =202+3m/s2=4 m/s2∴ f=3 x 4 N=12 N