Conceptual Physics (12th Edition)

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

Chapter 3 - Reading Check Questions (Comprehension): 16

Answer

9.8 m/s, often rounded to 10 m/s. (The question asks for the "gain in speed" each second, so the answer has the units of a "gain in speed".)

Work Step by Step

The gain in speed per second is 9.8 m/s (often rounded to 10 m/s). In other words, the acceleration is 10 m/s each second, or 10 $m/s^{2}$. This is discussed on pages 46-47.
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