Revision as of 20:07, 23 May 2012 by Goodwine(talk | contribs)(Created page with "The equation should be <math>friction\left(M \sin \omega t \right) = a_1 \cos \omega t + b_1 \sin \omega t + a_2 \cos 2 \omega t + b_2 \sin 2 \omega t + \cdots</math> [[Enginee...")