Question: The nearest star to Earth is Proxima Centauri, 4.3 lightyears away. (a) At what constant velocity must a spacecraft travel from Earth if it is

The nearest star to Earth is Proxima Centauri, 4.3 lightyears away.
(a) At what constant velocity must a spacecraft travel from Earth if it is to reach the star in 4.9 years, as measured by travelers on the spacecraft?
(b) How long does the trip take according to Earth observers?

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a To travelers on the spacecraft the distance to the star is contracted according to Eq 263a T... View full answer

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