2018 F = ma Exam B — Question 13 — Physics Guide

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F = ma (11–17)

Dynamics

FMA-2018B-13 · 2018B F = ma (AAPT)

2018 F = ma Exam B — Question 13

Two blocks of masses m = 2.0 kg and m = 1.0 kg are stacked together on top of a frictionless table as 1 2 shown. The coefficient of static friction between the blocks is µ = 0.20. What is the minimum horizontal s force that must be applied to the top block to make it slide across the bottom block? m 1 m 2 — Source: Question 13, 2018 F = ma Exam B, © 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.

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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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