A man of mass 50 kg is pulling on a plan...

A man of mass 50 kg is pulling on a plank of mass 100 kg kept on a smooth floor as shown with force of 100 N. If both man & plank move together, find force of friction acting on man.

`(100)/(3)` N towards left

`(100)/(3)` N towards right

`(250)/(3)` N towards left

`(250)/(3)` N towards right

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