1. The problem statement, all variables and given/known data A single mass m1 = 3.1 kg hangs from a spring in a motionless elevator. The spring is extended x = 11 cm from its unstretched length. 1)What is the spring constant of the spring? 2. Relevant equations F=-kx 3. The attempt at a solution Having trouble setting this one up. I know it is easy but the spring confuses me. I drew a free body diagram and I am still lost.