Conceptual Physics (12th Edition)

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

Chapter 9 - Think and Solve: 44

Answer

a. In Newton’s second law, solve for the acceleration. The net force is the gravitational force. $$ a = \frac{F}{m_{object}} = \frac{1}{m_{object}} G \frac{m_{object}M_{planet}}{d^{2}} = G \frac{M_{planet}}{d^{2}}$$ b. The mass of the object cancels out. The gravitational acceleration of an object does not depend on its own mass, but only on the mass M of the planet and its radius.
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