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a person of mass M is standing on one end of a plank of mass M and length L and floating in water the person moves from one end to another and stops. work done by normal force is- |
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Answer» OF MASS M STANDS AT ONE END OF A PLANK ... The MAN is on the other side of CENTER of mass now, and ... Distance moved by the man => L/8 + L/8 => L/4....... |
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