Conceptual Physics (12th Edition)

Published by Addison-Wesley
ISBN 10: 0321909100
ISBN 13: 978-0-32190-910-7

Chapter 2 - Think and Discuss: 89

Answer

When you jump and your feet leave the floor, your horizontal motion has not changed; you have the same 1000 km/hr horizontal speed that the Earth beneath you has.

Work Step by Step

From your own viewpoint, you simply move straight up and down. Please see page 34 for a discussion of this exact situation, and refer to Figure 2.19 and the text for a similar example of a coin tossed in an airplane.
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