1. The problem statement, all variables and given/known data A small spring with a force constant of 72 N/m is held vertically and then stretched 16 cm. A 1.6kg mass is attached to it and then released. Calculate the acceleration of the mass at the moment of release. 2. Relevant equations F = ma, Ee = 1/2kx^2 3. The attempt at a solution I honestly have no clue, sorry. The way I was going to go at it was to somehow get F from Ee but I keep getting lost.