You are driving a car at 30 m/s when a bad driver traveling at a constant speed of 20 m/s swerves into your lane 20 meters ahead. As soon as you see the car in front of you, you begin to brake. What is the smallest deceleration needed, in m/s2 , to avoid rear-ending the car? You may assume your acceleration is constant. Explain your reasoning.

You are driving a car at 30 m/s when a bad driver traveling at a constant speed of 20 m/s swerves into your lane 20 meters ahead. As soon as you see the car in front of you, you begin to brake. What is the smallest deceleration needed, in m/s2 , to avoid rear-ending the car? You may assume your acceleration is constant. Explain your reasoning.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter2: One Dimensional Motion

Section: Chapter Questions

Problem 50PQ: Car A and car B travel in the same direction along a straight section of the interstate highway. For...

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