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If i were to be traveling at the speed of light or near the speed of light for about one minute, how much Earth time has passed in that one minute i was traveling at or close to the speed of light.?

2007-08-21 16:46:49 · 9 answers · asked by ? 2 in Science & Mathematics Physics

9 answers

It depends on exactly how fast you were going.
At 99% of C one minute for you is equal to about 7 minutes for me.
At 99.9%, 22 minutes would pass for me.
At 99.99% 70.7 minutes would pass for me.
At 99.99999999% 70710 minutes would pass for me (over 49 days!)

The formula to calculate this is T=1/sqrt(1-v^2/c^2)
where v is the relative velocity between you and I in units of C, and c is the speed of light.

2007-08-21 17:30:59 · answer #1 · answered by I don't think so 5 · 0 0

You need to tell me exactly how fast are you going. You see the problem is that as you get closer to the speed of light, the time dilation factor goes to infinity. So the answer for 99% of the speed of light is nowhere close to the answer for 99.99% of the speed of light.

Anyway, to answer your question, you won't be able to go at the speed of light. But if you were traveling at 99% the speed of light, earth would go through 7 seconds if you go through one second. If you increase your speed to 99.99% the speed of light, then earth would go through 70 seconds while you go through only one second.

The formula is just 1/sqrt(1-p^2) where p is the decimal. So just plug in p=0.99 and then p=0.9999.

2007-08-22 00:09:44 · answer #2 · answered by The Prince 6 · 0 1

Time expands, space contracts.

Interestingly, while time expands from the perspective of the stationary observer, space contracts from the perspective of the moving observer. This phenomenon is known as Lorentz contraction, which is exactly the reciprocal of the above time dilation formula: l'=l*sqr(1-v²/c²).

Thus the space traveller passing by Earth at a speed of 0.99c would see it's shape as an ellipsis with the axis parallel to his flight direction contracted to a seventh of its original diameter. That is of course, if he sees it at all, given the enormous speed.

Therefore, space travel is shortened with the velocity of the traveller. A journey to the 4.3 light-years distant Alpha Centauri C, the closest star to our Sun, would take only 7.4 months in a space ship moving at 0.99c.


Source:

http://72.14.253.104/search?q=cache:GUEa4IdbplsJ:www.thebigview.com/spacetime/timedilation.html+formula+for+time+dilation+speed+of+light&hl=en&ct=clnk&cd=5&gl=sg

2007-08-22 00:05:30 · answer #3 · answered by ideaquest 7 · 0 1

If somebody's moving at speed "v" relative to you, their clocks slow down by this factor:

sqrt(1 – v²/c²)

So, for example, if their speed is 1/2 c, that formula shows their clocks will slow down to only 87% as fast as your clock.

If they're going at 99% of c, their clocks will be only 14% as fast as yours (i.e., slowed down by a factor of about 7).

By the way--although this sounds strange--it is always the OTHER clock that slows down, while "your" clock seems to tick normally. If you are travelling at 99% of c through space, the people on earth will swear that YOUR clock has slowed down by a factor of 7. But from your point of view, it is the EARTH clocks that have slowed down by a factor of 7.

So, (from your point of view) if you travel at 99%c for 1 minute, about 8.4 seconds will have passed on earth.

If you travel somewhat slower or faster, that time dilation will be somewhat more or less, according to the formula above.

2007-08-21 23:59:33 · answer #4 · answered by RickB 7 · 1 1

DT = T0 / SQRT(1 - v^2/c^2)

DT is difference in time
T0 is time interval on stationary clock
v^2 is relative velocity between stationary and moving clock
c^2 is speed of light squared

If you were moving at 290,000,000 m/sec your 60 seconds would equal 236.6 seconds back on Earth.

2007-08-22 00:16:18 · answer #5 · answered by Chug-a-Lug 7 · 0 1

One minute of Earth time. Time does not slow despite what relativity attempts to predict.

2007-08-22 00:14:18 · answer #6 · answered by Dan 3 · 0 1

im not sure i understand your question but from what i understand, time is constant it can never change its not like if u go at the speed of light u can be able to go to the future or someting like that. a minute is a minute anywere you go.

2007-08-21 23:56:34 · answer #7 · answered by Benito S 3 · 0 4

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2007-08-22 03:37:36 · answer #8 · answered by Aqua 2 · 0 1

I guess it depends on how you measured the time that you were traveling, and where you were traveling to.

2007-08-21 23:53:13 · answer #9 · answered by sdmcox 2 · 0 2

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