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F = ma (First 10)
Dynamics
FMA-2023-05 · 2023 F = ma (AAPT)

2023 F = ma Exam — Question 5

Two blocks of mass m and a block of mass 3m are attached to a system of massless fixed pulleys and massless string, as shown. 3m m m Assume all surfaces are frictionless. What is the acceleration of each mass m?
Source: Question 5, 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.