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 2 - Kinematics in One Dimension - Exercises and Problems: 7

Answer

During one beat of the heart, the blood moves approximately 8 cm.

Work Step by Step

The area between the velocity versus time graph and the x-axis is equal to the displacement. From t = 0.1 s to 0.3 s, the area under the velocity versus time graph is $\frac{1}{2}(0.8~m/s)(0.2~s)$ which is $0.08~m$ Therefore, during one beat of the heart, the blood moves approximately 8 cm.
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