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A system consists of three masses `m_(1),m_(2)` and `m_(3)` connected by a string passing over a pulley P. ?The mas `m_(1)` 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- 2mu ))/( 3)`

B

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

C

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

D

` ( 2 gmu )/( 3)`

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The correct Answer is:
A
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