2018 F = ma Exam A — Question 6 — Physics Guide

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FMA-2018A-06 · 2018A F = ma (AAPT)

2018 F = ma Exam A — Question 6

A packing crate with mass m = 115 kg is slid up a 5.00 m long ramp which makes an angle of 20.0◦ with respect to the horizontal by an applied force of F = 1.00×103 N directed parallel to the ramp’s incline. A frictional force of magnitude f = 4.00×102 N resists the motion. If the crate starts from rest, what is its speed at the top of the ramp? — Source: Question 6, 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.

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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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