1. The problem statement, all variables and given/known data Find the energy stored in a spring when stretched .05m, and .10m. Spring Constant of 67.21 N/m. (I am given a graph) 2. Relevant equations F=1/2kx^2 3. The attempt at a solution Ok, to find the energy stored I believe I am going to need the distance (.05m, and .10m) and the spring constant. Is there a way to calculate energy stored with just this? I am given a graph but the Force vs. Distance (in meters) only goes up to 0.3m so I can't rely on the graph just by looking at it.