An astronaut travels to a distant star with a speed of
Chapter 29, Problem 30(choose chapter or problem)
An astronaut travels to a distant star with a speed of 0.55c relative to Earth. From the astronauts point of view, the star is 7.5 ly from Earth. On the return trip, the astronaut travels with a speed of 0.89c relative to Earth. What is the distance covered on the return trip, as measured by the astronaut? Give your answer in light-years.
Unfortunately, we don't have that question answered yet. But you can get it answered in just 5 hours by Logging in or Becoming a subscriber.
Becoming a subscriber
Or look for another answer