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QUESTION
Leroy, who has a mass of 100kg, is skate boarding at 9.0m/s when he smacks into a brick wall and comes to a dead stop in .
Leroy, who has a mass of 100kg, is skate boarding at 9.0m/s when he smacks into a brick wall and comes to a dead stop in .2s.a. Show that his deceleration is 45 m/s^2
