Essential University Physics: Volume 1 (3rd Edition)

Published by Pearson
ISBN 10: 0321993721
ISBN 13: 978-0-32199-372-4

Chapter 8 - For Thought and Discussion: 10

Answer

No

Work Step by Step

Both of these orbits involve circular motion. Thus, the sun is exerting a centripetal force, which is by definition perpendicular to the path of the planet. Since only forces with a component parallel to the motion of an object do work, no work is done.
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