Conceptual Physics (12th Edition)

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

Chapter 2 - Reading Check Questions (Comprehension): 5

Answer

Galileo discovered by experiment and reasoning that a moving object will continue in motion forever, in the absence of friction or other opposing forces.

Work Step by Step

This is discussed on pages 23-25.
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