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A person of mass 70.0 kg is initially at rest on the edge of a large...

A person of mass 70.0 kg is initially at rest on the edge of a large stationary platform of mass 175 kg, supported by frictionless wheels on a horizontal surface. The person jumps off the platform, traveling a horizontal distance of 1.00 m while falling a vertical distance of 0.500 m to the ground. What is the final speed of the platform?

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