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D5-24: ROTATING PENDULA - LENGTH VS. HEIGHT 7 years 11 months ago #381

  • zzfixk23
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ID Code: D5-24
Purpose: Show that pendula of different length suspended from the same point rotating at the same angular speed rise to the same vertical height.
Description: When the device is rotated at an angular speed w the angle a from the vertical which a pendulum of length l will assume is given by cos a = g / w^2 l, where g is the acceleration of gravity. The vertical distance of each from the support point is l cos a = g / w^2, the same value for each of the pendulum. This can be easily observed using the apparatus.
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