If you travel at light speed and put your headlights on what happens?

Answer 1

Interesting things happen. First, you (and a space ship) can not reach the speed of light because it would require infinite energy and you would assume infinite mass. However, if you approached the speed of light to say within about 90% you and your craft would shrink (contracture) in the direction of motion. You would be unaware of the contracture and a flashlight beam pointed in any direction within the craft would be measured as traveling at the speed of light. Outside the craft, your headlight beams would send light forward only at the speed of light (not the sum of your speed and the speed of light). Light is composed of mass-less photons that must travel only at the speed of light, no faster and no slower. Photons only seem to travel at other speeds where space is distorted by great mass such as within a black hole from which light can not escape regardless of its speed.

Answer 2

You would be traveling at the speed of light relative to a person standing on the outside watching this, however the beam from your headlights would be traveling at the speed of light relative to you. So no matter how fast you travel you will never catch up to the light from your headlights, any effort to do so will only cause the world to age by the time you return to normal time.

Answer 3

What if you travel at heavy speed? Just kidding. So the speed of light and headlights together... Well, you won't be able to see too much, this I can tell. According to Einstein, nothing can travel faster than the speed of light, therefore the beams of light coming out of the headlights will stay right there, in the headlights.

Answer 4

Its a bit confusing in the sense that you are travelling at light say slow speed or if you really mean travelling at the speed of light.
in the first case the headlights will go on., in the latter case if you can achieve that speed (which is impossible) your head light will go on but you will not be able to see anything ahead due to the light and you having the same speed.

Answer 5

actually, if you're travelling faster than the speed of light and you turn on your headlights, anyone watching won't see the light immediately, but will see it moments later.

it's like in a race, when the start gun is pulled, if the starter is standing a distance away, you'll see the smoke from the gun first before you hear the bang. but to the starter, it happened at the same time.

Answer 6

First of all according to Einstein's equation E=MC2 if any matter travels at a speed of light it gets converted into energy. So in that state where's the question of turning on your headlights?

Answer 7

properly in the beginning, the mass of the article has a tendency to infinity alongside with its length as an merchandise techniques the fee of sunshine, as a results of particular relativity, as interior the vehicle being relative to a table bound merchandise, time might certainly be frozen if we travelled on the fee of sunshine, whilst in comparison with a table bound observer. If we predict of approximately a on a regular basis vehicle that strikes alongside a street and places its headlights on, the sunshine as a results of vehicle transferring would not circulate any speedier, wavelength and frequency would although alter, speed=frequencyxwavelegth. eg frequency improve and wavelegth shrink will nevertheless provide the sunshine at approx 10^8 ms-one million. So lower back to the question if shall we be in a vehicle occurring the fee of sunshine and positioned headlights on then there may well be no effect, there'll nevertheless be comparable quantity of power, as a results of fact the conservation rules that power won't be able to be created or destroyed :)

Answer 8

my guess. They come on and shine. You may be traveling at light speed but your headlights are relative to where you are at. So is your vehicle. So are you.

Answer 9

This is what really happens: Einstein shows up, takes your headlights away, slows you down to underlight speed (mumbeling something nasty about your mass) and points you to the search function of Yahoo!Answers, where this question is asked twice a day.

Answer 10

The light from your vehicle would still leave at the speed of light relative to the vehicle. The two speeds are not added together.If you shine a light source backwards it still leaves the vehicle at the speed of light relative to the vehicle.