Question: A figure skater can increase her spin rotation rate from an initial rate of 1.0 rev every 1.5 s to a final rate of 2.5rev/s.

A figure skater can increase her spin rotation rate from an initial rate of 1.0 rev every 1.5 s to a final rate of 2.5rev/s. If her initial moment of inertia was 4.6kg· m2, what is her final moment of inertia? How does she physically accomplish this change?

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