2010 F = ma Exam — Question 24 — Physics Guide

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FMA-2010-24 · 2010 F = ma (AAPT)

2010 F = ma Exam — Question 24

Conﬁdential 24. A uniform circular disk of radius R begins with a mass M; about an axis through the center of the disk and perpendicular to the plane of the disk the moment of inertia is I0 = 1 2MR2. A hole is cut in the disk as shown in the diagram. In terms of the radius R and the mass M of the original disk, what is the moment of inertia of the resulting object about the axis shown? axis of rotation R R R/2 — Source: Question 24, 2010 F = ma Exam, © 2010 American Association of Physics Teachers (AAPT) and the U.S. Physics Team. Adapted by PhysicsTrainer: reformatted into a separate question and answer choices for online multiple-choice practice; any shared setup from nearby questions is repeated here. Not affiliated with or endorsed by AAPT or the U.S. Physics Team.

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F = ma problems are © the American Association of Physics Teachers (AAPT) and the U.S. Physics Team, the original source, and are used with permission. Problems shown here are adaptations: they have been reformatted by Physics Guide into separate question and answer-choice pieces for online multiple-choice practice. Physics Guide is an independent student project and is not affiliated with, endorsed by, operated by, or supported by AAPT, F = ma, USAPhO, or the U.S. Physics Team.

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