Fundamentals of Engineering Thermodynamics 8th Edition

Published by Wiley
ISBN 10: 1118412931
ISBN 13: 978-1-11841-293-0

Chapter 2 - Exercises: Things Engineers Think About - Page 79: 6

Answer

While running on treadmill, energy is transferred to the treadmill in form of work i.e. W = normal frictional force due to body weight of runner* distance moved by treadmill. This energy increases the temperature of treadmill hence it gets warm.

Work Step by Step

While running on treadmill, energy is transferred to the treadmill in form of work i.e. W = normal frictional force due to body weight of runner* distance moved by treadmill. This energy increases the temperature of treadmill hence it gets warm.
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