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AP Physics 1
6.4 Conservation of Angular Momentum
6.3 Angular Momentum and Angular Impulse
IntermediateMCQProportional AnalysisConceptual24.3k
Two students sit on circular rotating platforms. Student 1 on the left is labeled with rotational inertia I, and Student 2 on the right is labeled with rotational inertia 2I. Their hands are touching as if pushing away from each other. Vertical dashed lines indicate the axis of rotation for each stool.
Two students with different rotational inertias pushing off each other on rotating stools.
Two students are sitting on separate stools that are free to rotate about their vertical axes with negligible friction. Initially, both students and their stools are at rest. Student 1 and their stool have a combined rotational inertia \(I_1 = I\). Student 2 and their stool have a combined rotational inertia \(I_2 = 2I\). Student 1 pushes horizontally against Student 2, causing both students and their stools to begin rotating in opposite directions. Which of the following correctly compares the magnitudes of their angular momenta \(L\) and their angular speeds \(\omega\) after the push?

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