what happen when a particle excees the speed of light?

Answer 1

for ur g.k. Tachyons travel at v > c. (always)

also mass m as given in modern physics
m =
m0
--------------
sqrt (1 - v^2/ c^2 )

v is velocity, m0 is rest mass (mass at v=0)

as per ur quest

let us subs v = c

thus m = m0 / 1 - 1
=m0 / 0
= infinity

also
t = t0 / sqrt ( 1 - v^2/c^2)

if v> c t becomes -ve. v get into past.


all this is still in theory though

Answer 2

As something approaches the speed of light time slows down, length decreases and mass increase. At 98% the speed of light its a 1:5 ratio. Some experiments have shown particles travelling faster than light by having an x-ray source split into 2 beams and travelling parallel to each other with 1 beam passing througha solid mass. By monitoring the two beams as they reach the end they are of course out of sync but the beam that passed through the air took longer to reach the target then the one that passed through the mass. Some argue this is proof that particle can travel faster than light and this test also supports quantum tunneling. Now x-rays are particles and waves.
Some also feel that once you pass the speed of light time speeds back up you go back to normal size and its like breaking the sound barrier very ruff ride as you approach it but smooth sailing afterwards

Answer 3

Accordint to Einstein's famous equation, E=MC2, a particle's energy is equal to it's mass times the speed of light squared. The equation for the kinetic energy of a particle is E=1/2mv2 where m is mass and v is velocity (squared.) Therefore, MC2=1/2mv2. The m's cancel. C2=1/2v2. If you are at the speed of light (also impossible) then v=c. Therefore, c2=1/2c2. The c2 cancels and you are left with 0=1/2 which is impossible. The more practical reason is that as you increase your velocity, your mass increases. As you approach the speed of light, your mass becomes infinite and there is not enough energy to propel the particle forward any longer.

Answer 4

If a particle exceeds the speed of light, it would then be traveling faster than the speed of light.

Answer 5

When a particle exceeds the local speed of light in an insulating medium (slower than the speed of light in vacuum), it emits a "shock wave" of electromagnetism called "Cherenkov radiation." This effect is analogous to a sonic boom or a bow wave. "Cherenkov radiation" is source of the characteristic blue glow that surrounds a water-immersed nuclear reactor.

On the other hand, if a particle IN VACUUM exceeds the speed of light, the person who did this immediately patents the INFINITE ENERGY SOURCE that he used to accelerate the particle to light speed, and goes on to make a mint designing planet-moving cranes, custom suns, and universal entropic reversal devices.

Answer 6

Einsteins equations prove that matter cannot exceed the speed of light but I just read something about light going backwards in some process and exceeding the original speed of light but it is still light so do we have a new speed of light ? and if we reverse it again is it faster yet ? and can we eventually use it to build the first warp drive? - I'm so confused

Answer 7

they don't excess the speed of light in vacuum however if they exceed the speed of light in a given material then you have the Cerenkov radiation, a very beautifully blue that is know in nuclear powers

Answer 8

nothing can exceed the speed of light

Answer 9

As you push the speed of light, time slows down. Everyone and everything around you would appear to be moving very slow.

Answer 10

Event Horizon I guess.
http://en.wikipedia.org/wiki/Event_horizons