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A dog of mass 5kg is resting on a flat boat of mass 20kg . Such that it is 10m from the shore .Boat is resting on frictionless water . The dog walks 4m through the boat towards the shore and finally halts .find the final separation between dog and shore
The centre of mass for the system wont change.So0 = mass of dog x distance moved by dog + mass of boat x distance moved by boatSo we findDistance moved by the boat = -1Thus it will be further away from shore by 1mTotal distance = 11m
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