Thermodynamics: An Engineering Approach 8th Edition

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: 1-7C

Answer

Zero in both cases

Work Step by Step

As two examples are at a constant velocity, there is no acceleration. According to the second law of Newton $F=m*a$ if there is no acceleration then the net force in both cases is zero.
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