Задача id12676

A raft of mass m1 slides freely along the surface of the water with speed v1. A person of mass m2 jumps onto a raft from the shore. The speed of a person is perpendicular to the speed of the raft and is equal to v2. Determine the speed v of the raft with a person. Neglect the frictional forces of the raft on the water.

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