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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 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-g mu ))/(9)`

B

`(2 gmu)/(3)`

C

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

D

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

Text Solution

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The correct Answer is:
C
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TARGET PUBLICATION-FRICTION IS SOLIDS AND LIQUIDS -MCQ (COMPETITIVE THINKING)
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