College Physics (7th Edition)

Published by Pearson
ISBN 10: 0-32160-183-1
ISBN 13: 978-0-32160-183-4

Chapter 26 - Relativity - Learning Path Questions and Exercises - Multiple Choice Questions - Page 903: 11

Answer

(c) exactly 1.45m tall

Work Step by Step

Since the length of the observer's friend is perpendicular to their relative velocity, the height of his friend measured by the observer would be same as original height of 1.45m. Length contraction will not occur in the direction perpendicular to the relative velocity.
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