# If you were in a car and travelling at the speed of light then you turn on the head lights what would happen?

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as assumed you are travellin with the speed of light and turn the head light on, the photons of light will leave the lamp with the speed of light and it will be just equal to your speed so will not see the light turnin on because when we see the light we only see the reflection of the light on other thing as in ur case to see the head light it must reflect to you back from the ground But by the time the head light reaches the ground you will also reach that point too !!

The first answer is correct; the following two have missed the fundamental, and non intuitive, aspect of relativity...the speed of light is constant no matter what the source, no matter where the observer is...no matter what. That's the remarkable thing about what Einstein came up with...it's totally at odds with the speed of all other things.

So if you were on a speeding train and tossed a ball forward of the train, the velocity of the ball would be that of the train plus whatever your strong arm could provide. Not so with light. If that train is now going at light speed (if it could) and the ball is now a photon, that photon would still be going at light speed, as (get this because it's important) both you on the train and your worried mum standing on the ground watching you see it. That is, despite the speed of the train, you both see the light traveling at the same speed, i.e., c the speed of light.

How could this be? The simple answer is this...space and time are altered when mass approaches light speed. And those alterations cause both observers, on the train and on the ground, to see light speed as being the same speed.

• amede
Lv 4
3 years ago

Thats a jolly hard question to respond to, as there is not any way of even apporaching gentle speed at a macroscopic element to commence to attempt experimentation. As an merchandise travels swifter (were speaking thousands of metres a second) this is going to become heavier, and for this reason desires more suitable skill to boost up added. modern-day idea stands that as some thing procedures the speed of light, it ought to become so heavy that it does no longer be able to achieve sufficient skill to get any closer. in spite of this, the speed of light, c, is a commonplace consistent above which it truly is postulated that no longer some thing can shuttle. With noo technological information to back any answer, you need to aswell ask what colour the insidee of a sealed field is.

You can't travel at the speed of light, because only things with zero mass, such as photons, get to do that.

However, if your car was approaching the speed of light, say, 0.9c, then it would still look to you af if the light travels away from you at a speed of c, because the speed of light is independant of the frame of reference.

the light would not leave the headlight covers. They would be traveling the same speed. It would not matter though, you would not be able to take in the sights at that speed anyway. Oh... and watch out for bugs at that speed, hurricane winds have been known to embed drinking straws into hardwood trees!