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In the given arrangement all surfaces ar...

In the given arrangement all surfaces are smooth. What acceleration should be given to the system, for which the block `m_(2)` doesn't slide down?

A

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

B

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

C

g

D

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

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