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14 answers

in car you cant see the headlights coes speed is same wiht car and headlight. You may think headlight are out of order ( but not) If you begin to make brake in your car you begin to see headlights of your car.
Good question .

2007-01-31 20:14:48 · answer #1 · answered by hanibal 5 · 0 0

The light from your head lights would travel away from you at the speed of light, and you would notice no difference. Except for the whole slowing of time thing... Light always travels at the speed of light and theoretically you could never catch up to the end of the light beam. Therefore from your stand point in side the car, the light from your headlights would be traveling away from you at the speed of light. Again while you are traveling at the same speed, you cannot catch the end of the beam, so you would still see the light in front of you.

2007-01-31 20:02:13 · answer #2 · answered by KJC 1 · 0 0

If we can move with the speed of light say C and when the head lights are turned we expect that the light should stand still with respect to us. It is because the relative speed is found by C- C =0.

But it has been proved that even if you move with the speed of light you will still measure the speed of light as C and not zero.

Afterall speed of light is measured by the distance it traveled per unit time.

Going with the speed of light and at the same time measuring the speed of light as c is possible only when our meter scale length becomes zero and the the time does not move.

Therfore we cannot move with the speed of light.

But if you move little slower than the light's speed and turn on your head lights,light will travel with its usual speed C.

And every thing will be as usual.

2007-01-31 22:40:57 · answer #3 · answered by Pearlsawme 7 · 0 0

Now if you were travelling at say nine tenths the speed of light relative to a planet you just passed by and you turn on your lights, the headlight photons would travel away from you at the speed of light.

According to someone on the planet you just passed, those same photons would be travelling away from the planet at the speed of light as he sees it.

Both of you see the same phenomenon, but your meter stick is different from the planet stander... you watch ticks different from his too.

2007-01-31 19:56:26 · answer #4 · answered by Holden 5 · 1 0

The headlights would be on, but you would not recognize it past the causal realization of having turned them on. At the speed of light, there would be no time delay to see the light diffuse into the air around you. Besides, at lightspeed, you'd be a part of the electromagnetic spectrum at some wavelength; white light would add as much to your visual plane as two tears would to a bucket of water.

2007-01-31 19:53:57 · answer #5 · answered by jrsydevl74 2 · 0 0

You obviously could not be travelling at the speed of light.

However, if you were, then from your perspective the light would shine on whatever it is that is in front of you, whereas from an observer's perspective no light would be coming from the headlights.

From outside the car, time inside the car appears to slow down to nothing as you approach the speed of light, and the same is true of what you see outside of your car.

The reason for this lies in a value used for relativistic time dilation, as well as length dilation, and often assigned to the Greek letter gamma.
Gamma is 1/sqrt(1-v^2/c^2), where c is the speed of light, and v is the object's velocity.
The amount your clock advances for each tick of mine ends up being
Δt' = gamma * (Δt- v Δx / c^2).
Dividing by Δt gives us:
Δt'/Δt = gamma * (1- (Δx/Δt) v / c^2)
and, since Δx/Δt, the rate of change of position relative to time, is the same as velocity, we have
Δt'/Δt = gamma * (1- v^2 / c^2)
You can see that 1- v^2 / c^2 = (1/gamma)^2, so you get
Δt'/Δt = 1/gamma
1/gamma approaches 0, so your time approaches stopped, from my point of view, as you approach the speed of light.

From my point of view, you are also flat in the direction you are travelling.
I will never see your lights, because, from my point of view, time is not elapsing in your car. No electrons are moving through the bulb filaments, and no photons have time to be emitted from the heated filament. So no headlights are visible from my perspective, but they are from yours.

2007-01-31 19:52:22 · answer #6 · answered by a r 3 · 0 0

Same thing as if you were traveling at 80 mph or even 25 mph. Your headlights would be on.

The only difference would be that someone/thing would see your car at the same time they see your headlights as you approach them from a distance.

This is the simpliest way to answer, as the full technical answer is quite complex.

2007-01-31 19:50:58 · answer #7 · answered by anynameiwant 2 · 0 0

there's no right answer to this question.... since its impossible to be carried out in an experiment. theoretically, speed of light is like the "top max speed possible", so nothing could go faster than that.

if you account for relative motion...well...lets say if you're driving a convertible car at 25 miles per hour, and throw a ball straight forward at 25mph, the ball would go 25mph relative to the car and 50mph relative to the ground.

2007-01-31 19:50:39 · answer #8 · answered by Anonymous · 0 0

Pointless question because IF you were going at the speed of light your mass would be infinite, as all the mass in the universe. Plus you'd have needed all the energy in the universe to get up to that velocity.

2007-01-31 19:52:32 · answer #9 · answered by Chug-a-Lug 7 · 0 0

From your point of view , it would be the same.
From Someone outside the car, you wouldnt be seen.

Time inside the car would be slower than outside.
unless proven that a man can go faster than the speed of light.

2007-01-31 20:59:36 · answer #10 · answered by 2cute4u 2 · 0 0

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