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A wooden plank of mass 20kg is resting o...

A wooden plank of mass `20kg` is resting on a smooth horizontal floor. A man of mass `60kg` starts moving from one end of the plank to the other end. The length of the plank is `10m`. Find the displacement of the plank over the floor when the man reaches the other end of the plank.

Text Solution

Verified by Experts

mass of man m = 60 kg , mass of the boat M = 20 kg , length of the plank = 10 m
Distance moved by the boat `S =(ml)/(m+M) = (60 xx 10)/(60 + 20) = 7.5 m`
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