In a ballistics test, a 21.0 g bullet traveling horizontally at 1300 m/s goes through a 30.0 cm -thick 450 kg stationary target and emerges with a speed of 900 m/s. The target is free to slide on a smooth horizontal surface. How long is the bullet in the target? _____ What average force does the bullet exert on the target? _____ N

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A: If you have any questions let me know in comment box.

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