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F = ma (Final Problems)
Dimensional Analysis
FMA-2022A-23 · 2022A F = ma (AAPT)

2022 F = ma Exam A — Question 23

For objects moving through air, the force of air resistance can be modeled as proportional to the speed (“linear drag”) or proportional to the square of the speed (“quadratic drag”), depending on the circumstances. Two identical objects, A and B, are dropped from the same height h simultaneously, but object A is given an initial horizontal velocity v. The objects hit the ground at times tA and tB . Accounting for air resistance, which of the following is true?
Source: Question 23, 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.