Physics Confused

timer Asked: Dec 4th, 2015

Question description

The moment of inertia for a certain ~frictionless merry-go-round is 1000 kg•m2. A child of mass 30.0 kg is standing on the edge of the initiall stationary merry-go-round, which is 2.50 m from the center of the merry-go-round. He begins to walk at an angular speed of 0.50 rad/s as seen by his mother, who is sitting on the park bench nearby. What is the angular speed of the merry-go-round? Answer in rad/s.

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