Answer
8.44s
Work Step by Step
First, we convert 65 km/h to 18.1 m/s and 120 km/h to 33.3 m/s.
Next, we use the equation below to find t:
v = $v_{0}$ + at
t = $\frac{v-v_{0}}{a}$
t = $\frac{33.3m/s - 18.1m/s}{1.8m/s^2}$
t = 8.44s
Physics: Principles with Applications (7th Edition)
by Giancoli, Douglas C.
Published by
Pearson
ISBN 10:
0-32162-592-7
ISBN 13:
978-0-32162-592-2
Chapter 2 - Describing Motion: Kinematics in One Dimension - Problems - Page 44: 20
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