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  • 3 years ago

A dog (5kg) is inside a boat (20kg) thats is 6m from the margin. He walks 2,4m on the boat in the direction of the margin and then stops. Ignore the friction between the water and the boat. At what distance from the margin is the dog after the walk? Sugestion: The dog moves to the left; the boat shifts to the right; and the mass center of the sistem dog+boat? does it move?

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