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F = ma (11–17)
Dynamics
FMA-2023-13 · 2023 F = ma (AAPT)

2023 F = ma Exam — Question 13

A uniform box with mass m is at rest on a horizontal surface, and the coefficient of static friction between them is µs . A force directed at an angle of 85◦ above the horizontal is applied to the center of the box, with a linearly increasing magnitude F = βt. F The box will eventually slide or lift off the ground. Which of the following is correct?
Source: Question 13, 2023 F = ma Exam, © 2023 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.