An astronaut leaves Earth in a spaceship at a speed of 0.960c relative to an observer on Earth

The astronaut's destination is a star system 14.4 light-years away (one light-year is the distance light travels in one year.) According to the astronaut, how long does the trip take?
A) 14.4 y B) 15.0 y C) 9.34 y D) 4.20 y E) 22.7 y


D

Physics & Space Science

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