Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (3rd Edition)

Published by Pearson
ISBN 10: 0321740904
ISBN 13: 978-0-32174-090-8

Chapter 1 - Concepts of Motion - Exercises and Problems - Page 32: 57

Answer

A tinny bird is just learned how to fly, so it flies from a branch to a higher branch on the same tree. At first, it flew to a branch that is 15 meters high than its nest. This journey took 8 seconds, so it decided to take a rest on this branch for extra 8 seconds. Then he flew to a higher branch that is 15 meters away from its new branch (or 30 meters above its nest) and this trip took only 4 seconds. It seems it learns how to fly perfectly.

Work Step by Step

A tinny bird is just learned how to fly, so it flies from a branch to a higher branch on the same tree. At first, it flew to a branch that is 15 meters high than its nest. This journey took 8 seconds, so it decided to take a rest on this branch for extra 8 seconds. Then he flew to a higher branch that is 15 meters away from its new branch (or 30 meters above its nest) and this trip took only 4 seconds. It seems it learns how to fly perfectly.
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