2006-08-10 11:44:31 · 12 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
Theoretically, it is impossible for "you" to be traveling at the speed of light (unless you are a photon, in which case you don't have headlights). However, if you are in a car that is somehow moving at the speed of light or very very close to it, relativity predicts that the photons from your headlights will still move away from you at a constant speed of approimately 300,000 km/s, the speed of light.
2006-08-10 11:49:59 · answer #1 · answered by bpc299 2 · 0⤊ 0⤋
The speed of light is a maximum speed. Turning on the head lights will produce nothing visual.
Comparison: You are flying a jet doing 300mph and fire a cannon where the bullet is rated at 500mph. The bullet will exit to barrel at a speed of 800mph relative to the ground. However, since the speed of light is a maximum speed at which energy travels the speed of the light from the headlights cannot be 'added to' the speed you are already going.
Hope this helps!
2006-08-10 18:51:07 · answer #2 · answered by wrkey 5 · 0⤊ 0⤋
in an experiment, light was measured moving toward the earth, and at a 90 degree angle towards the earth, and both found to be the same. The Doppler effect would tell us that the light coming toward the earth should be faster than light at 90 degrees to the earth, and that the frequencies should differ, but that was found to be false, assuredly making the speed of light constant.
Theroetically, even if you were to travel at the speed of light, the light produced by the headlights would travel 186,000 mph faster than you. This is to say that you could somehow reduce your mass to zero, as an object can not match the speed of light, due to mass growing exponentially in proportion to velocity. At 10 percent of the speed of light, your mass would grow by about .5 percent. At 90 percent, you're mass would be more than double. The equivalence between the energy of an object at speed, and it's mass, would mean that you would need an infinite amount of energy to propel any amount of mass to the speed of light, because the mass would have become infinite itself. E=MC squared, Energy equals Mass times the speed of light squared. Energy measured in jules, and mass measured in kilograms.
2006-08-10 19:23:23 · answer #3 · answered by rpalm82 2 · 0⤊ 0⤋
The first answer to this question is on the money. I'll also add to it though, by saying that supposing you were travelling at near the speed of light and you passed by some stationary flashlight that is pointing in the direction that you are moving. After you pass it, it turns on. The light from the stationary flashlight will still pass you at the FULL speed of light, regardless of how close to the speed of light you are moving.
2006-08-10 18:56:01 · answer #4 · answered by Erik 2 · 0⤊ 0⤋
Your question doesn 't make any sense. Matter doesn't travel at the speed of light and light, which does, does emit light (itself).
Trying to anthromorphize light will lead to all sorts of silly ideas.
2006-08-10 18:54:05 · answer #5 · answered by Alan Turing 5 · 0⤊ 0⤋
you probably slow down when other vehical reduce their speed or you may see the sign of the headlights from a far that needs you to slow down your asz or else.....
2006-08-10 18:52:15 · answer #6 · answered by Anonymous · 0⤊ 0⤋
why would u limit
urself to the speed of light?;)
also to answer ur question, the result will be spaceship with
headlights on:)
http://www.newscientist.com/article/mg18925331.200
2006-08-10 18:56:18 · answer #7 · answered by Anonymous · 0⤊ 0⤋
Speed is relative.
2006-08-10 19:02:06 · answer #8 · answered by Anonymous · 0⤊ 0⤋
We are not capable of understanding what would happen. Time would slow down and mass would increase and we would enter another dimension.
2006-08-10 20:16:06 · answer #9 · answered by Barkley Hound 7 · 0⤊ 0⤋
the big bang
2006-08-10 18:50:12 · answer #10 · answered by Anonymous · 0⤊ 0⤋