Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)

Published by Pearson
ISBN 10: 0133942651
ISBN 13: 978-0-13394-265-1

Chapter 1 - Concepts of Motion - Exercises and Problems - Page 31: 50

Answer

For part B - Imagine you are driving a car and you see the traffic lights turn red you slowly press the brake (deceleration) and stop , then the lights turn green so you begin to accelerate . Draw a vector diagram showing variation of car's velocity.

Work Step by Step

Initially when you apply the brakes the body undergoes deceleration and eventually stops . Then when you start accelerating the velocity keeps on increasing.
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