1. The problem statement, all variables and given/known data A 2 meter long pendulum passes its lowest point with a velocity of 4 m/s, then swings back up before temporarily coming to a stop. What angle does it then form with the vertical, if the air resistance is negligible? 2. The attempt at a solution I know that the kinetic energy at the bottom will equal the potential energy at the top - that is when the pendulum comes to a temporary stop. KE = PE (1/2)(m)(16) = (m)(g)(h) h = 0.82 meters Now, I understand that this is the max height above the lowest point. I can't figure out how to proceed from here. I don't have two components to find the angle.