If Astronauts Could Travel at V = 0

question 24

Multiple Choice

If astronauts could travel at v = 0.90c,we on Earth would say it takes (4.2/0.90) = 4.7 years to reach Alpha Centauri,4.2 lightyears away.The astronauts disagree.How much time passes on the astronaut's clocks?

• A)2.0 years
• B)2.4 years
• C)1.4 years
• D)3.0 years

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