What happens to the speed of light when the car increases its speed?

Light in vacuum always travels at the same speed c, exactly 299,792,458 meters per second, no matter how it is created or in what frame it is observed. To you in the speeding car, the light would be traveling away at speed c. Your friend at rest on the ground would also measure the light traveling at speed c.

What will happen when a car Travelling at the speed of light turns on its headlight?

As mentioned in TFF, if the car is travelling near the speed of light an observer in front of the car would see the beam from the headlights not as visible light, but as energetic gamma rays since the light is shifted towards shorter wavelengths by the Doppler effect.

Can the light velocity of the object be greater than the speed of light?

In special relativity, it is impossible to accelerate an object to the speed of light, or for a massive object to move at the speed of light. However, it might be possible for an object to exist which always moves faster than light.

What will happen if you run at the speed of light?

No, we cannot travel at the speed of light. Consider this… the speed of light is 300,000 kilometers per second (186,000 miles per second) and when an object moves at this speed, its mass will become infinite. Therefore, infinite energy will be required to move the object, which is impractical.

Would headlights work at Lightspeed?

If you want to know what happens when you are driving at very nearly the speed of light, an answer can be given. The light from your headlights will always go at the speed of light in your reference frame. It will strike any object in its path and be reflected back.

Is velocity greater than velocity?

Velocity is speed with direction, so it is impossible to have a greater speed than velocity. You could have a greater speed at one time than the average velocity.