1. The problem statement, all variables and given/known data A 2.0 kg mass is placed on top of a vertical spring, which compresses to a new equilibrium position; the spring is then compressed from this new equilibrium position by a distance of 0.05 m. What will be the acceleration of the mass just after the spring is released from this position? I don't really know where to start. The only equation I can find that is relevant is F= -kx. But no spring constant is given. Any help please?