Question about speed of light?

  • Thread starter tutondrius
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  • #1
question about speed of light??!?!?

speed off light is a constant, so if theoretically we travel in empty space in a theoretical car on a theoretical road (no drag) with the speed of light and we turn on the head lights of the car, what would happen? The light form the head lights will stay on one place or it is going to move forward, faster then me, also faster than itself????

p.s. sorry for the bad English
 

Answers and Replies

  • #2
Doc Al
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speed off light is a constant, so if theoretically we travel in empty space in a theoretical car on a theoretical road (no drag) with the speed of light and we turn on the head lights of the car, what would happen? The light form the head lights will stay on one place or it is going to move forward, faster then me, also faster than itself????
Forget about a car traveling at the speed of light--that can't happen. Instead, say the car traveled at 0.99c with respect to the road, where c = the speed of light. If you turn on the lights, the observer in the car will see the light move at speed c with respect to the car. An observer on the road will also see the light move at speed c with respect to the road.
 
  • #3


ok let me change the question. Only theoretically if a light source is travailing 100% the speed of light. What is happening with the light in the direction it is travailing. And please explain it like you would to a moron.
 
  • #4
Doc Al
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ok let me change the question. Only theoretically if a light source is travailing 100% the speed of light.
I assume you want a factual answer based on accepted physics? If so, the premise of the question is impossible, as things such as light sources cannot travel at the speed of light.
 
  • #5
xts
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Even theoretically light source cannot travel at 100% of the speed of light.
 
  • #6


ok 10x very much. :D
 

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