A man of mass m is standing on a plank k...

A man of mass m is standing on a plank kept on ground having mass m. There is no friction between the plank and the ground. If the man walks with an acceleration a w.r.t. the plank when calculate the acceleration of the plank w.r.t. the ground. Also calculate frictional force exerted by the plank on man.

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The correct Answer is:

`A=(a)/(2); f=(ma)/(2)`

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