How fast does it move after the projectile emerges

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Reference no: EM13651573

A 13 g projectile traveling 152 m/spenetrates into a 0.25-kg wad of putty and emerges cleanly at42 m/s.

(a) If the putty is stationary on a frictionlesssurface when hit, how fast does it move after the projectile emerges?

m/s

(b) How much kinetic energy was lost in this process?

Reference no: EM13651573

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