If a disk and a ring both have the same mass and radius, which one has...

If a disk and a ring both have the same mass and radius, which one has the greater moment of inertia? Why is this so?
A figure skater doing pirouettes spins faster when she tucks her arms close to her chest and spins slower when she spreads out her arms. Explain this in terms of moment of inertia and Newton’s Second Law for rotational motion.

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genius_generous answered 1 year ago

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