Conceptual Physics (12th Edition)

Published by Addison-Wesley
ISBN 10: 0321909100
ISBN 13: 978-0-32190-910-7

Chapter 35 - Think and Explain: 67

Answer

They also measure that you are slightly narrower.

Work Step by Step

From their perspective, they are at rest and you are the fast-moving person, so you suffer length contraction.
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