Essential University Physics: Volume 1 (3rd Edition)

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

Chapter 8 - Exercises and Problems - Page 142: 50

Answer

The speed must be increased by a factor of $\sqrt2$.

Work Step by Step

We know that the speed in orbit is $\sqrt{\frac{GM}{r}}$. We know that the escape speed is $\sqrt{\frac{2GM}{r}}$. Thus, the speed must be increased by a factor of $\sqrt2$.
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