2007 F = ma Exam — Question 18 — Physics Guide

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F = ma (11–17)

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FMA-2007-18 · 2007 F = ma (AAPT)

2007 F = ma Exam — Question 18

18. A small chunk of ice falls from rest down a frictionless parabolic ice sheet shown in the figure. At the point labeled A in the diagram, the ice sheet becomes a steady, rough incline of angle with respect to the horizontal and friction coefficient 0 30 k µ . This incline is of length h 2 3 and ends at a cliff. The chunk of ice comes to rest precisely at the end of the incline. What is the coefficient of friction k µ ? 300 — Source: Question 18, 2007 F = ma Exam, © 2007 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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