Astronaut Rob Leaves Earth in a Spaceship at a Speed

question 89

Multiple Choice

Astronaut Rob leaves Earth in a spaceship at a speed of 0.960c relative to an observer on Earth.Rob's destination is a star system 14.4 light-years away (one light-year is the distance light travels in one year) .Relative to a frame of reference that is fixed with respect to Earth,how long does it take Rob to complete the trip?

• A)14.4 years
• B)15.0 years
• C)10.8 years
• D)4.20 years
• E)22.7 years

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