1. The problem statement, all variables and given/known data A 250 gram mass is connected to a spring and executes simple harmonic motion. The period of motion is 0.5 seconds and the total mechanical energy is 0.50J. What is the amplitude of motion? 2. Relevant equations ΔU = 1/2kx2 3. The attempt at a solution I get 1/2kx2 = 0.5J, then I get kx2 = 1.0J Not sure where to go from here. I do have the answer from the answer key, but I have no idea how to actually get the answer. I think I'm supposed to integrate something, but I'm not sure how to incorporate the time value into any equations.