What is the distance covered on the return trip

Reference no: EM13659021

An astronaut travels to a distant star by a speed of0.45c relative to Earth. From the astronaut's point of view, the star is 7.4 ly from Earth. On the return trip, the astronaut travels by a speed of 0.81c relative to Earth. What is the distance covered on the return trip, as measured by the astronaut? Give your answer in light-years.

Reference no: EM13659021

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