A block of mass m is resting on a smooth...

A block of mass m is resting on a smooth horizontal surface. One end of a uniform rope of mass `m/3` is fixed to the block, which is pulled in the horizontal direction by applying force F at the other end. The tension in the middle of the rope is

`8/6 F`

`1/8 F`

`1/5F`

`7/8 F`

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