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A wooden plank of mass 30 kg is resting on a smooth horizontal floor. A man of mass 70 kg starts moving from one end of the plank to the other end. The length of plank is 20 m. Find the displacement of the plank over the floor when the man reaches the other end of the plank.

Answer»

A wooden plank of mass 30 kg is resting on a smooth horizontal floor. A man of mass 70 kg starts moving from one end of the plank to the other end. The length of plank is 20 m. Find the displacement of the plank over the floor when the man reaches the other end of the plank.






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