Physics: Principles with Applications (7th Edition)

Published by Pearson
ISBN 10: 0-32162-592-7
ISBN 13: 978-0-32162-592-2

Chapter 2 - Describing Motion: Kinematics in One Dimension - Problems: 11

Answer

0.011 hour.

Work Step by Step

The velocity of the car relative to the truck is their difference, 20 km/hr. They move at constant velocity. In the truck’s reference frame, the car must cover 210 m to catch up. $$t = \frac{0.210 km}{20 km/hour} = 0.011 hour$$
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