16. We use Eq. 8-18, representing the conservation of mechanical energy. The reference position for computing Uis the lowest point of the swing; it is also regarded as the “final” position in our calculations. (a) In the solution to problem 7, we found U= mgL(1 – cos θ ) at the position shown in Fig. 8-34 (which we consider to be the initial position). Thus, we have
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This note was uploaded on 05/17/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.