A block of mass m slides down a incline. At the bottom, it strikes a block of mass M = 6.90 kg which is at rest on a horizontal surface, see the figure (Figure 1). (Assume a If the collision is elastic, and friction can be ignored, determine what is the upper limit on mass m if it is to rebound smooth transition at the bottom of the incline.) from M, slide up the incline, stop, slide down the incline, and collide with M again? Figure