- #1
riddledum
- 7
- 0
Hi guys and girls. Need some assistance with these problems, not the hardest examples, but I need some help on the way.
1.
An astronaut travels at 0.9c across our galaxy, which is 100 000 light years in diameter. How long time will it take (according to the astronaut) to travel from one end of the galaxy to the other?
2.
Same question, but in this question, the astronaut travels at 0.99c
3.
If the astronaut travels at 0.99c, he will perceive the length of the galaxy to another length, what is that length?
L' = L*sqrt(1-v^2/c^2)
t' = t/sqrt(1-v^2/c^2)
Homework Statement
1.
An astronaut travels at 0.9c across our galaxy, which is 100 000 light years in diameter. How long time will it take (according to the astronaut) to travel from one end of the galaxy to the other?
2.
Same question, but in this question, the astronaut travels at 0.99c
3.
If the astronaut travels at 0.99c, he will perceive the length of the galaxy to another length, what is that length?
Homework Equations
L' = L*sqrt(1-v^2/c^2)
t' = t/sqrt(1-v^2/c^2)