University Physics with Modern Physics (14th Edition)

Published by Pearson
ISBN 10: 0321973615
ISBN 13: 978-0-32197-361-0

Chapter 37 - Relativity - Problems - Discussion Questions - Page 1247: Q37.8


See explanation.

Work Step by Step

Larry is at rest relative to the train, and measures the proper length for a train car. To Adam, the train is moving, so he measures a contracted length. To David, the train is also moving, but not quite as fast as Adam perceives it to move. David measures a contracted length that is ever-so-slightly longer than what Adam measures, though still less than the proper length.
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