Conceptual Physics (12th Edition)

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

Chapter 10 - Think and Explain: 79

Answer

11.2 km/s.

Work Step by Step

The maximum falling speed for a body released far away and falling under the influence of Earth’s gravity is 11.2 km/s (footnote, page 199). This is the reverse of the process of launching an object from the surface at the Earth's escape speed, 11.2 km/s, and having it slow to nearly zero when it is far away from Earth.
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