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F = ma (11–17)
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FMA-2022A-16 · 2022A F = ma (AAPT)

2022 F = ma Exam A — Question 16

A hexagonal pencil of uniform density lies at rest on a horizontal table. It is pushed horizontally with a steadily increasing force halfway up its height, as shown. F What is the minimum value of the coefficient of static friction between the floor and pencil, so that the pencil will eventually begin to roll?
Source: Question 16, 2022 F = ma Exam A, © 2022 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.