Recent content by spXq

Hang on... the time for the crew is 10 years so the time for the observer is t/gamma 10/1,048 = 9,54 years Edit: no that's not right... I have no idea what I'm doing Edit2: the time from Earth's viewpoint is d * gamma = 4,3 * 1,048 = 10,48 years, while the time is 10 years for the crew

Hmm... i don't know. :/ The distance is 4,3 ly but I don't know the speed, so how do I find the time?

The first part of the assignment asks for the time required when traveling at 30% of light speed. Given a gamma factor of 1,048 I get ~13,7 years, which is correct (so the gamma factor must be correct as well). velocity = distance / time But... for t = 10 and d = 4,3 v = 4,3 / 10 v = 0,43...

The distance to Alpha Centauri is 4,3 light years. How fast would a spaceship have to travel to get there in 10 years, according to the crew? The answer *should* be 0,395c. So far I've gotten all sorts of answers but not much close, so I seem to be approaching the problem the wrong way.