The m1 = 1.4 kg block at rest on a horizontal frictionless surface is connected to an unstretched spring (k = 200 N/m) whose other end is fixed. (See Fig. 10-36.) The m2 = 2.5 kg block whose speed is 4.0 m/s collides with the 1.4 kg block. Assume that the two blocks stick together after the one-dimensional collision. What maximum compression of the spring occurs when the blocks momentarily stop?