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QUESTION
Leroy, who has a mass of 100 kg., is skateboarding at 9.0 m/s when he smacks into a brick wall and comes to a dead stop in .
Leroy, who has a mass of 100 kg., is skateboarding at 9.0 m/s when he smacks into a brick wall and comes to a dead stop in .2 s.show that his deceleration is 45 m/s2show that the force of impact is 4500 N.
