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

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