A small ball of mass m is aligned above a larger ball ofmass M = 0.83 kg (with aslight separation, as with the baseball and basketball of Figure9-67a), and the two are dropped simultaneously from heighth = 1.9 m. (Assume the radiusof each ball is negligible relative to h.)

Fig. 9-67

(a) If the larger ball rebounds elasticallyfrom the floor and then the small ball rebounds elastically fromthe larger ball, what value of m results in the largerball stopping when it collides with the small ball?
(b) What height does the small ball then reach (Figure9-67b)?