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A block A of mass m(1) rests on a horizo...

A block `A` of mass `m_(1)` rests on a horizontal table. A light string connected to it passes over a frictionless pulley at the edge of table and from its other end another block `B` of mass `m_(2)` is suspended. The coefficient of knetic friction between the block and table is `mu_(k)` . When the block `A` is sliding on the table, the tension in the string is.

A

`(m_2 - mu_km_1)g/(m_1 + m_2)`

B

`m_1m_2(1 + mu_k)g/(m_1 + m_2)`

C

`m_1m_2(1 - mu_k)g/(m_1 + m_2)`

D

`(m_2 + mu_km_1)g/(m_1 + m_2)`

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