Physics (10th Edition)

Published by Wiley
ISBN 10: 1118486897
ISBN 13: 978-1-11848-689-4

Chapter 2 - Kinematics in One Dimension - Problems: 5

Answer

a) +8.0 m/s b) -8.0 m/s c) +2.0 $\times$ $10^{1}$ m/s

Work Step by Step

displacement = $\Delta$x = $x_{f}$ - $x_{0}$ average velocity = $\frac{displacement}{time}$ a) $\Delta$x = 6 - 2 = 4 average velocity = $\frac{4}{0.50}$ = +8.0 m/s b) $\Delta$x = 2 - 6 = -4 average velocity = $\frac{-4}{0.50}$ = -8.0 m/s c) $\Delta$x = 7 - (-3) = 10 average velocity = $\frac{10}{0.50}$ = +2.0 $\times$ $10^{1}$ m/s
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