Above is a vector formulation of for the motion of the outermost particle of the animation done by p
Above is a vector formulation of for the motion of the outermost particle of the animation done by proofsareart. Pretty clever realizing that both the inner and outer circles have equal radius length, and also that the outer circle completes two revolutions for every 3 that the inner circle does. If you can pick up those two observations the rest is just simple trigonometry. -- source link
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