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In a ballistics test, a 23 g bullet traveling horizontally at 1100 m/s goes through a 33-cm-thick 400 kg stationary target and emerges with a speed of 950 m/s . The target is free to slide on a smooth horizontal surface.
(a) how long is the bullet in the target?
S
what average force does it exert on the target?
N (magnitude only)
(b) What is the targets speed just after the bullet emerges?
m/s
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