In the figure, block 2 (mass 1.70 kg ) is at rest on a frictionless surface and touching the end of an unstretched spring of spring constant 294 N/m. The other end of the spring is fixed to a wall. Block 1 (mass 1.10 kg ), traveling at speed v1 = 5.70 m/s, collides with block 2, and the two blocks stick together. When the blocks momentarily stop, by what distance is the spring compressed? Number Units