Alex, who has a mass of 100 kg, is skateboarding at 9.0 m/s when he smacks into
Question:
Alex, 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 0.2 s.
a. Show that his deceleration is 45 m/s2.
b. Show that the force of impact is 4500 N. (Ouch!)
Step by Step Answer:
a a vt 90 ms...View the full answer
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