1. The problem statement, all variables and given/known data The masses in figure slide on a frictionless table.m1 ,but not m2 ,is fastened to the spring.If now m1 and m2 are pushed to the left,so that the spring is compressed a distance d,what will be the amplitude of the oscillation of m1 after the spring system is released ? 2. Relevant equations 3. The attempt at a solution I feel if I can find the position and velocity where m1 loses contact with m2 ,i.e N=0 ,then new amplitude of oscillation can be obtained . Let the origin be at m1 when the spring is unstretched. The equation of motion for mass m1 is -kx-N = m1d2x/dt2 ,where N is the Normal contact force between the blocks and x is the displacement of the block. I would be grateful if someone could help me with the problem.