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F = ma (First 10)
Simple Harmonic Motion
FMA-2018A-08 · 2018A F = ma (AAPT)

2018 F = ma Exam A — Question 8

A disk of radius r rolls uniformly without slipping around the inside of a fixed hoop of radius R. If the period of the disc’s motion around the hoop is T, what is the instantaneous speed of the point on the disk opposite to the point of contact? R r
Source: Question 8, 2018 F = ma Exam A, © 2018 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.