A 135m long steel beam is moving past the Earth actually measures the steel beam to be only 57m long. How fast was the beam travelling at?

College Physics
1st Edition
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:Paul Peter Urone, Roger Hinrichs
Chapter28: Special Relativity
Section: Chapter Questions
Problem 38PE: (a) What is the momentum of a 2000 kg satellite orbiting at 4.00 km/s? (b) Find the ratio of this...
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A 135m long steel beam is moving past the Earth actually measures the steel beam to be only 57m long. How fast was the beam travelling at?
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