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A system consists of three m1, m2 and m...

A system consists of three `m_1`, `m_2` and `m_3` connected by a string passing over a pulley P . The mass `m_1` hangs freely and `m_2` and `m_3` are on a rough horizontal table(the coefficient of friction=`mu`)The pulley is frictionless and of negligible mass. The downward acceleration of mass `m_1` is (Assume `m_1 - m_2 = m_3=m)`.
.

A

`(g(1-gmu))/9`

B

`(2 g mu)/3`

C

`(g(1-2 mu))/3`

D

`(g(1-2mu))/2`

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