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Fig. shows a block of mass m(1) resting ...

Fig. shows a block of mass `m_(1)` resting on a smooth surface. It is connected to a mass `m_(2)` by a string passing over a massless and frictionaless pulleys `m_(2) gt m_(1)`. The acceleration of the hanging mass `m_(2)` is `:`

A

`( m_(1)-m_(2))/( m_(1)+m_(2))g`

B

`( m_(2)-m_(1))/( m_(2)+m_(1))g`

C

`( m_(1)g)/( m_(1)+m_(2))`

D

`( m_(2)g)/( m_(1)+m_(2))`

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