# What happens after exceeding the speed of light?

I'm curious about one thing. What happens after exceeding the speed of light? What are you opinions about this? What does it mean as the formula $$m=\frac{m_0}{\sqrt{1-\frac{v^2}{c^2}}}$$ goes after subsitute to equation example mass to m_0 and speed higher than speed of light to v negative mass? This question may be pseudo-science which does not mean that I do not know physics. It's not typical physics section but science fiction section.

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BvU
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You litterally run out of time.
And if you look at your expression again: m goes through infinity and does not become negative but imaginary
And so on and so forth. Science fiction

Ryan_m_b
Staff Emeritus
Nothing can travel faster than light. That equation, and many like it, stop working the moment you start plugging in impossible values.

jbriggs444
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What does it mean as the formula $$m=\frac{m_0}{\sqrt{1-\frac{v^2}{c^2}}}$$ goes after subsitute to equation example mass to m_0 and speed higher than speed of light to v negative mass?
That is the formula for relativistic mass. The concept of relativistic mass is one that has been largely discarded. Instead one uses the concept of total energy (the sum of rest energy plus kinetic energy).

##E = \frac{m_0}{\sqrt{1-\frac{v^2}{c^2}}}## for v not exactly equal to c.

and

##E^2 = m^2c^4 + p^2c^2## for all v

A particle with a real-valued mass would have an imaginary energy if it were moving at greater than the speed of light. In addition, it would be travelling backward in time according to at least some inertial reference frames. If one could transmit signals using such particles, it would lead, in principle, to causality violations.

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You risk an astronomical speeding fine !

• OCR, SammyS, davenn and 1 other person
DrGreg
Gold Member
You risk an astronomical speeding fine !
The fine is imaginary.

• Drakkith and davenn
davenn
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2019 Award
The fine is imaginary.
as is the speed • Drakkith
phinds
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2019 Award
You risk an astronomical speeding fine !
The fine is imaginary.
as is the speed I'm beginning to wish this thread were imaginary @hubot, the trouble with your question is that you are asking for a physical answer resulting from extrapolating a math equation in a way that does not represent reality. As Ryan pointed out, your really can't do this in any meaningful way. It's like asking "if the laws of physics don't apply, what do the laws of physics say about <insert nonsense of your choice>".

• Whyndham_UCL, Drakkith and davenn
sophiecentaur
Gold Member
If you break those laws you will have to do time.

• Drakkith and OCR
OCR
If you break those laws you will have to do time.
Lol ...

If energy cannot be destroyed and energy being light can travel at the speed of light what happens if light can be accelerated across a distance farther than it can travel there at its speed? ........and no math because math cant explain every dam thing in the universe.
SO your traveling at the speed of light your a mass of energy and then you break free of what ever is holding you at that speed and skip farther than you can travel at the speed of light.

What if light takes a short cut is it not traveling faster than it would if it hadnt?

davenn
Gold Member
2019 Award
If energy cannot be destroyed and energy being light can travel at the speed of light what happens if light can be accelerated across a distance farther than it can travel there at its speed? ........and no math because math cant explain every dam thing in the universe.
SO your traveling at the speed of light your a mass of energy and then you break free of what ever is holding you at that speed and skip farther than you can travel at the speed of light.
no need to double post

light doesn't accelerate across any distance ... the speed of light is constant in free space so your Q doesn't make sense

you cannot travel at the speed of light because you have mass .... again your Q doesn't make sense

Dave

davenn
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2019 Award
What if light takes a short cut is it not traveling faster than it would if it hadnt?

please think about what you want to say before typing it, again, this is nonsense

Dave

• phinds
berkeman
Mentor
Total nonsense thread is closed. To the newbie posters -- please do some reading of the scientific posts here at the PF, including our FAQs and the Intights articles. We discuss mainstream science here, not crazy questions from newbies who have not done any reading.