1. The problem statement, all variables and given/known data A simple pendulum is constructed by supporting a .375 kg steel sphere by a thin string 1.2 in length and of negligible mass. The pendulum is released form rest at a position where the string makes an angle of 35° with the vertical. What is the speed of the sphere as it reaches the lowest point of its arc. 2. Relevant equations KE= 1/2mv^2 PE=mgy 3. The attempt at a solution I attempted to find the potential energy when it is at the top of its path and then ,since it will have the same amount of energy at the bottom, find the velocity using the formula for KE (air friction I believe is not taken into account). I unfortunately don't know how to find the height of the sphere based on the angle from the vertical.