1. The problem statement, all variables and given/known data A mass of 500 g is attached to the bottom of an unstretched spring attached to the ceiling, and has a spring constant 10 N/m. The mass is then released. What is the net work done on the mass between the point where it was released and the lowest point that it reaches? 2. Relevant equations Wnet= F.d 3. The attempt at a solution The point at which it is released, v=0 and the lowest point is a turning point therefore v=0. So Wnet=delta K= 0 as velocity is 0 both times. Would the work done be 0 J then? Thanks in advance for any help!