Answer
No.
Work Step by Step
The distances are the same, so you spend more time traveling at 70 km/h than at 90 km/h. Your average speed will be less than 80 km/h.
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 - Questions - Page 41: 12
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