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Fig. 4. (Color online) Plot of ln |v(tlow)| as a function of time for the simple pendulum motion of balls of various sizes: 11.5, 18.7, 24.1, 30.0, and 36.0 mm. Each plot represents the result of one measurement out of the five measurements taken for that ball size. |v(tlow)| was measured in m/s.
New Phys.: Sae Mulli 2021;71:1067~1075