1. The problem statement, all variables and given/known data I'm sorry but I don't have the exactly problem written down but I know the givens. So the question involves finding work done on a pendulum hanging from the ceiling. 2. Relevant equations I was given the the length of the string is 1m. That a mass hangs at the bottom of string and it's 2kg. That it displaces .5 meters to the left. 3. The attempt at a solution I was thinking that I had to do mgh = 1/2mv^2 but then did know how to get velocity. Any clues?