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Rotation: Angular Momentum

Problem #: 2 | Variant #: 1

A 44.8 kg child is sitting in the middle of a 190.8 kg merry-go-round of radius 2.66 m while it is spinning at a rate of 4.5 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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