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 - Questions: 20

Answer

For a circular orbit, the correct orbital speed depends on the radius of the orbit.

Work Step by Step

The satellite stays in orbit because it has a horizontal velocity. It is falling toward the center of the Earth, but because it is also moving “sideways”, the Earth’ surface curves away from it at just the correct rate so that the satellite stays at the same height above the surface.
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