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AP Physics 1
6.4 Conservation of Angular Momentum
IntermediateMCQMathematicalConceptual20.1k
Two sketches of a figure skater. On the left, the skater is spinning with arms stretched out horizontally. On the right, the skater is spinning with arms tucked tightly against their chest. A vertical axis of rotation passes through the center of the skater in both sketches.
Figure skater changing mass distribution during a spin.
A figure skater is spinning on a horizontal sheet of ice with negligible friction. Initially, the skater spins with their arms extended horizontally. The skater then pulls their arms in close to their body. Which of the following correctly describes the changes in the magnitude of the skater's rotational inertia, angular momentum, and angular velocity during this process?

| | Rotational Inertia | Angular Momentum | Angular Velocity |
|---|---|---|---|

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