[SOLVED] Simple Pendulum 1. The problem statement, all variables and given/known data A simple pendulum with a length of 1.23 m and a mass of 6.64 kg is given an initial speed of 1.96 m/s at its equilibrium position. (a) Assuming it undergoes simple harmonic motion, determine its period. (b) Determine its total energy. (c) Determine its maximum angular displacement. (For large v, and/or small l, the small angle approximation may not be good enough here.) 3. The attempt at a solution I have solved up to part c), and I can't figure out how to set it up. I thought at first it was .5mv^2 = mgh and then solving for h, but once I get h I am not sure what to do. Can someone help me get this set up? Thanks.