A block of mass m1 is pulled along a ho...

A block of mass `m_1` is pulled along a horizontal frictionless surface by a rope of mass `m_2` . If a force F is given at its free end. The net force acting on the block is

`(m_1 F)/(m_1 - m_2)`

`F`

`(m_2F)/(m_1 + m_2)`

`(m_1F)/(m_1 + m_2)`

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