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F = ma (11–17)
Dynamics
FMA-2024-13 · 2024 F = ma (AAPT)

2024 F = ma Exam — Question 13

Two frictionless blocks of mass m are connected by a massless string which passes through a fixed massless pulley, which is a height h above the ground. Suppose the blocks are initially held with horizontal separation x, and the length of the string is chosen so that the right block hangs in the air as shown. h x If the blocks are relased, the tension in the string immediately afterward will be T . Which of the following shows a plot of T versus x? T T mg mg x
Source: Question 13, 2024 F = ma Exam, © 2024 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.