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A 55 kg swimmer is standing on a stationary 210 kg floating raft

Physics Sep 10, 2020

A 55 kg swimmer is standing on a stationary 210 kg floating raft. The swimmer then runs off the raft horizontally with a velocity of 4.6 m/s relative to the shore. What is the recoil velocity that the raft would have if there were no friction and resistance due to the water?

Expert Solution

A 55 kg swimmer is standing on a stationary 210 kg floating raft. The swimmer then runs off the raft horizontally with a velocity of 4.6 m/s relative to the shore. What is the recoil velocity that the raft would have if there were no friction and resistance due to the water?

By Law of Conservation of Momentum, m1v1 = (m1 + m2)v2
Therefore, v2 =

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