i57 In Fig. 9-9, a ball of mass m = 60 g is shot withspeed v; = 22 m/s into the barrel of a spring gun ofmass M = 240 g initially at rest on a frictionlesssurface. The ball sticks in the barrel at the point ofmaximum compression of the spring. Assume that theincrease in thermal energy due to friction between theball and the barrel is negligible. (a) What is the speedof the spring gun after the ball stops in the barrel? (b)What fraction of the initial kinetic energy of the ballis stored in the spring?Figure 9-9Mm

Answered: i 57 In Fig. 9-9, a ball of mass m = 60…

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