Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)

Published by Pearson
ISBN 10: 0133942651
ISBN 13: 978-0-13394-265-1

Chapter 5 - Force and Motion - Exercises and Problems: 27

Answer

There are four forces acting on the plane. The force of gravity points straight down. The normal force from the ground points straight up. These two forces have the same magnitude. The force of air drag points in the opposite direction from the plane's motion. The force of thrust points in the direction of the plane's motion. Since the plane is accelerating, the force of thrust is greater in magnitude than the force of air drag.
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Work Step by Step

There are four forces acting on the plane. The force of gravity points straight down. The normal force from the ground points straight up. These two forces have the same magnitude. The force of air drag points in the opposite direction from the plane's motion. The force of thrust points in the direction of the plane's motion. Since the plane is accelerating, the force of thrust is greater in magnitude than the force of air drag. Note that the oval in the free body diagram represents the plane.
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