Answer
In both the cases, no acceleration, no force.
Work Step by Step
a. Constant velocity on a level road: no acceleration, no force.
b. uphill no force no acceleration.
Thermodynamics: An Engineering Approach 8th Edition
by Cengel, Yunus; Boles, Michael
Published by
McGraw-Hill Education
ISBN 10:
0-07339-817-9
ISBN 13:
978-0-07339-817-4
Chapter 1 - Introduction and Basic Concepts - Problems - Page 41: 1-6C
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