Answer
4s
(4 seconds)
Work Step by Step
Clock A is located 4 clocks away from the origin. We were given that each clock is one light-second apart, so the signal will take 4 seconds to reach the clock, and the clock will then be set at 4 seconds.
Fundamentals of Physics Extended (10th Edition)
by Halliday, David; Resnick, Robert; Walker, Jearl
Published by
Wiley
ISBN 10:
1-11823-072-8
ISBN 13:
978-1-11823-072-5
Chapter 37 - Relativity - Questions - Page 1145: 7a
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