Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)

Published by Pearson
ISBN 10: 0133942651
ISBN 13: 978-0-13394-265-1

Chapter 5 - Force and Motion - Conceptual Questions: 7

Answer

(a) $a = 20~m/s^2$ (b) $a = 5~m/s^2$ (c) $a = 10~m/s^2$

Work Step by Step

$F = ma$ can be rearranged as; $a = \frac{F}{m} = 10~m/s^2$ Then; (a) $a = \frac{2F}{m} = (2)(10~m/s^2) = 20~m/s^2$ (b) $a = \frac{F}{2m} = \frac{10~m/s^2}{2} = 5~m/s^2$ (c) $a = \frac{2F}{2m} = \frac{F}{m} = 10~m/s^2$
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