Mechanics > Kinematics >  2-D > Circular Motion

DCS# 1D50.xx

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BEAD ON ROTATING HOOP

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APPARATUS

hoop	202-10-C
LED and battery in a paper clamp	202-15-A
rotator	202-15-A

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DESCRIPTION

The angular position of the bead depends on the angular speed of the hoop.  This illustrates the classic mechanics problem that is simpler to analyze using Lagrangian rather than Newtonian mechanics.