How fast must one travel to reach the center of the galaxy (25,000 light years) in one lifetime? Assume a lifetime is 75 years. Use exact values?How fast must one travel to reach the center of the galaxy (25,000 light years) in one lifetime?You want a gamma factor (the factor by which time is stretched) of 25000/75. Do the division.
Gamma is equal to 1/sqrt(1 - v^2/c^2). I'll get you started solving for v:
gamma = 1/sqrt(1 - v^2/c^2)
sqrt(1 - v^2/c^2) = 1/gamma
1 - v^2/c^2 = (1/gamma)^2
v^2/c^2 = 1 - (1/gamma)^2How fast must one travel to reach the center of the galaxy (25,000 light years) in one lifetime?Simple, moving at the speed of light, he needs 25000 years, and this is impossible since he should be massless to do so.
Moving at faster than the speed of light is impossible as well.
So, its impossible..Theoretically speaking ;)How fast must one travel to reach the center of the galaxy (25,000 light years) in one lifetime?Forget about it. Only massless radiation can even travel at the speed of light. It would never be possible. Einstein has proved it.How fast must one travel to reach the center of the galaxy (25,000 light years) in one lifetime?
Well as soon as you figure out a way to go faster than the speed of light you should let us know.
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