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. How much is the acceleration? 10 m/s² 0000 Om/s² ○ 45 m/s² ○ 25 m/s²

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. How much is the acceleration? 10 m/s² 0000 Om/s² ○ 45 m/s² ○ 25 m/s²

Physics for Scientists and Engineers with Modern Physics

10th Edition

ISBN:9781337553292

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter2: Motion In One Dimension

Section: Chapter Questions

Problem 11P: A particle starts from rest and accelerates as shown in Figure P2.11. Determine (a) the particles...

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Question

I need help with this problem and an explanation for the solution described below. (University Physics 1: Newton's Law)

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. How much is the acceleration?
10 m/s²
0000
Om/s²
○ 45 m/s²
○
25 m/s²

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