1. The problem statement, all variables and given/known data https://www.physicsforums.com/showthread.php?t=77424 It's that exact problem, except I need the latter parts to it. (a) What is the position of the block? m (b) What is the work that has been done on the block by the applied force? J (c) What is the work that has been done on the block by the spring force? J During the block's displacement, find the following values. (d) The block's position when its kinetic energy is maximum. m (e) The value of that maximum kinetic energy. mJ 3. The attempt at a solution I solved A by myself from Fx = 1/2kx^2. Solved for x. Then for C, I did -1/2kx^2. And B = 1/2kx^2. I need parts D and E. How would I go about solving them? I know that deltaK = Kf - Ki = W(applied force) + W(spring).