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F = ma (First 10)
Kinematics
FMA-2024-08 · 2024 F = ma (AAPT)

2024 F = ma Exam — Question 8

A rod of length L is sliding down a frictionless wall. L v When the rod makes an angle of 45◦ to the horizontal, the bottom of the rod has speed v. At this moment, what is the speed of the middle of the rod?
Source: Question 8, 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.