Physics: Principles with Applications (7th Edition)

Published by Pearson
ISBN 10: 0-32162-592-7
ISBN 13: 978-0-32162-592-2

Chapter 5 - Circular Motion; Gravitation - Problems: 38

Answer

The acceleration due to gravity would be 2/9 of its old value.

Work Step by Step

Equation 5-5 gives g, the acceleration due to gravity near the surface of a planet such as Earth. If the mass were to double, this would increase g by a factor of 2.0. If the radius were to triple, this would decrease g by a factor of 9.0. Overall, g changes by a factor of 2/9.
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