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Alex, who has a mass of 100 kg, is skateboarding at 9.0
Chapter 5, Problem 52TAS(choose chapter or problem)
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 \(45\mathrm{\ m}/\mathrm{s}^2\).
b. Show that the force of impact is 4500 N. (Ouch!)
Text Transcription:
45 m/s^2
Questions & Answers
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 \(45\mathrm{\ m}/\mathrm{s}^2\).
b. Show that the force of impact is 4500 N. (Ouch!)
Text Transcription:
45 m/s^2
ANSWER:Step 1 of 3
(a) Alex’s deceleration is given by,