Astronaut travels to a distant star with a speed

Reference no: EM13662361

An astronaut travels to a distant star with a speed of 0.52 relative to Earth. From the astronaut's point of view, the star is 7.4 from Earth. On the return trip, the astronaut travels with a speed of 0.87 relative to Earth.

What is the distance covered on the return trip, as measured with the astronaut? Give your answer in light-years.

Reference no: EM13662361

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