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13 answers

I assume your question is about how a beam of light emitted from headlights or a flashlight or laser would look to a person traveling at high speed. Well, that person's inertial reference is relative and everything should look exactly the same in his local frame of reference. So, when he turns on his flashlight it should look the same to him as if he were standing still, moving 100mph, moving 10% the speed of light, 50% the speed of light, or 99.9% the speed of light.

Obviously, this light would look different to an observer not in his frame of reference. If he were approaching and observer and turned on his flashlight the beam would get more blue shifted the faster he went. So, to an observer there would be a substantial change from 10% lightspeed to 50% lightspeed and 99.9% lightspeed. But, to the man with the flashlight it would look the same.

The reason some people are objecting is because you said at the speed of light and although you can get close you can't actually hit the speed of light. It is undefined like dividing by zero because some of the values like mass become infinite.

2006-07-28 06:40:45 · answer #1 · answered by scientia 3 · 1 0

You can't drive anything at the speed of light. Mass increases with speed. When you reach the speed of light, mass becomes infinite, making any kind of forward motion possible. So what would happen is if your vehicle reached the speed of light it would come to a full stop instantly completely disintegrating you and the vehicle so you wouldn't be able to turn the lights on anyway.

2006-07-28 13:17:19 · answer #2 · answered by darth_hatidious 2 · 0 0

Assuming you had a car that could go the speed of light, the light would travel at the same speed as you were, which means that it wouldn't illuminate anything in front of you.

2006-07-28 13:15:56 · answer #3 · answered by Diane 5 · 0 0

The headlight lights will blast into your face. Of course, if they were the taillights, they would leave a trail of light like in those space mission movies!

2006-07-28 16:40:15 · answer #4 · answered by Speller188 2 · 0 0

Nothing will happen,Whatever speed you drive the generator got Automatic votage regulator fitted inside will give same out put voltage of battery in your car.(13.2- 13.8volts)

2006-07-28 13:20:33 · answer #5 · answered by ricky414 5 · 0 0

I assume this is a theoretical question. In theory your headlights would work fine.

2006-07-28 13:16:40 · answer #6 · answered by DrB 7 · 0 0

How could you turn 'em on? Your arm, or thumb, or whatever, would have to travel faster than light to reach the switch!

2006-07-28 13:16:11 · answer #7 · answered by Anonymous · 0 0

Dr. Science proved this.

Your lights chase after you.

("I have a Master's Degree...in Science!")

2006-07-28 13:15:46 · answer #8 · answered by Anonymous · 0 0

Yeah, you will pass your headlights up.

2006-07-28 13:15:06 · answer #9 · answered by Anonymous · 0 0

Traffic police will catch for overspeeding

2006-07-28 13:24:33 · answer #10 · answered by Kaaks 3 · 1 0

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