(adsbygoogle = window.adsbygoogle || []).push({}); 1.The radius of our galaxy is approx. 3x10^20 m. A spaceship sets out to cross the galaxy in 25 years, as measured on board the ship. With what uniform speed does the spaceship need to travel? How long wold the trip take, as measured by a timepiece stationed on Earth?

2. v=d/t

3. So far I have converted the 25 years into seconds using proportions of 1 yr = 31556952 to get 788923800 seconds in 25 years. I found the velocity using v=d/t. d = radius of galaxy and t = 788923800 seconds

I am not sure if I am doing this right, and what do I have to do find out how long this trip would take? I don't think my distance is correct

thanks

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# Homework Help: Relatvitiy - Spaceship traveling into Galaxy

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