1. The problem statement, all variables and given/known data Mass = 2.4 kg spring constant = 400 N/m equilbrium length = 1.5 The two ends of the spring are fixed at point A, and at point B which is 1.9m away from A. The 2.4 kg mass is attached to the midpoint of the spring, the mass is slightly disturbed. What is the period of oscillation? 3. The attempt at a solution So in this question the spring is stretching by .4m just to get from A to B, but then it is also being stretched and compressed when it oscillates, how would I incorporate that into my calculation? Also since the mass is in the middle would this change anything?