Conceptual Physics (12th Edition)

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

Chapter 10 - Reading Check Questions (Comprehension): 20


Like Aristotle, Kepler thought that the force on a moving planet would be in the direction of motion. Newton realized that objects in orbit are being pulled toward the body they are orbiting, so the force on a moving planet is toward the Sun.

Work Step by Step

This is discussed on page 197.
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