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DC Physics Help - Solved Problems Database - rotation-momentum | Problem: 2 | Variant: 1

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Rotation: Angular Momentum

Problem #: 2 | Variant #: 1

A 20 kg child is sitting in the middle of a 137.6 kg merry-go-round of radius 2.57 m while it is spinning at a rate of 4.2 rpm. If the child moves out to the edge, how fast will it be spinning? (Hint: use conservation of angular momentum)

rpm

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