Concept explainers
53 An airplane has a length of 60 m when measured at rest. When the airplane is moving at 180 m/s (400 mph) in the alternate universe, how long would it appear to be to a stationary observer?
- A. 24 m
- B. 36 m
- C. 48 m
- D. 60 m
- E. 75 m
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