I wanted to know if anyone of you do know a book or article on the Internet in which the equations of motion of a double pendulum is deduced, only using vector methods (i.e. Newton's 2nd law as opposed to Lagrangian formalism).
closed as off-topic by tpg2114♦, Brandon Enright, John Rennie, Kyle Kanos, jinawee Feb 25 '14 at 14:42
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