Can the speed of any partical be greater than speed of light ?

Question

When any body is released from infinite distance on a planet then
it aquires the speed equal to escape velocity of that planet.It can be simply derived by using concept of integration.Now my question is that when a body is released from infinite distance on the black hole will it aquire the escape speed of black hole which is greater than speed of light?

Answer 1

Just a comment on Lone Wolf's answer... this is not the reason. The reason is all due to relativity. As you approach the speed of light, you're relative time slows down, and approaches zero. So some have theorized that after you hit the speed of light, this effect continues into the negative, and then you travel backwards in time. This is only one theory.

But general relativity tells us that no physical object can reach the speed of light, so no object would be able to escape a black hole once it passes the event horizon.

Answer 2

The particle would stay at sub light speeds until it crossed the event horizon of the black hole.

In theory, black holes can never completely form, or they take infinitely long to form. The collapsing object would always be bigger than the event horizon. This is because time dilation causes time to slow down as the collapsing object falls faster and faster and gravity gets stronger and stronger as the mass gets denser and closer to being a true black hole. Einstein describes all this, saying that there really can't be any black holes in a universe of finite age, there can only be super dense collapsing objects on the way to becoming black holes. It is those super dense collapsing objects that people today are really talking about when they say black hole.

But reality is too complicated and boring, so everyone just says black hole.

Answer 3

I dont quite know what you're talking about with escape velocity and infinite distance from planets. Its a bit confusing.
Any particle near a black hole that is massless will be attracted to it at the speed of light, such as photons or light. If it has mass then it might approach the speed of light but it can never reach it.
But the true nature of black holes is by no means clear and weird things outside our current understanding may occur in and around black holes.
As for going faster than the speed of light, theoretical particles called tachyons are said to exist that travel at a MINIMUM of the speed of light.

Answer 4

Einstein says no.

There is Gamma Radiation present near black holes. Stephen Hawking suggests this could be from anti-particles hitting normal particles on the black hole (releasing gamma rays) and reducing the mass of the black hole.

The original string theory postulated a particle that MUST travel faster that light at all times called a Tachyon. But since this violates Einstein's views on the physics of the universe it is not in favor and largely discounted, but this does not mean some scientist may find a proof for a Tachyon at some point.

Answer 5

I'm not sure what you mean by "from infinite distance" in this context.

However, whilst it is true that a particle moving at sub-light speed cannot be accelerated to a velocity greater than c (the speed of light in a vacuum*), certain solutions in Boson string theory suggest that particles exist (tenatively named tachyons) that can travel at velocities greater than c but cannot (and this is the important bit) travel at a velocity LOWER than c.

Unfortunately, even if tachyons exist, it does not appear that there is even a theoretical chance of our making use of their superluminal velocity.

Whilst it is true that IF a particle could be accelerated to a velocity >c then it could acheive escape-velocity from a Black Hole (with all of the associated weirdness that that implies), I can't think of an current theory that would imply this possibility.

Answer 6

If a speed can be achieved, then SOMTHING can be going at that speed - but not necessarily a particle, as we know it. This questions borders on the philosophical - we aren't capable of accurately measuring many things.

I'm not sure a body could be released from infinite distance on a black hole - again, a body as we know it.

The site below is my blog, for commenting, not a scientific reference.

Answer 7

you're confusing diverse ideas and a similar word used as an adjective right here, yet with diverse meanings. "darkish", on your storage occasion, is merely the absence of sunshine. darkish would not circulate - gentle leaves, and the absence of sunshine maintains to be. that is like shutting off the water on your bathe. you do no longer unexpectedly get hit with a gaggle of non-water. The water stops flowing, is all. "darkish remember" is merely remember that we will no longer hit upon. Scientists CAN degree the value of gadgets as they struggle by way of area, and would estimate their mass. they additionally be conscious of the guidelines of action that each and all and sundry mass could persist with, be they some thing the scale of a bagel, or some thing the scale of the Andromeda galaxy. the celebrities and galaxies that we can see do no longer persist with the regulations properly - the stuff that we can see would not have sufficient mass to circulate the way it does. They circulate as though there became plenty extra mass in contact by some potential. So scientists and physicists desperate that there could be extra mass obtainable, and that they have given the call "darkish remember" to this mass.

Answer 8

No.

The speed of light is an impossible speed to achieve for any particle or object that has mass.

Answer 9

I would think that any particle would have friction, even in space where there is "seemingly" no friction. I'm not a physicist by any means but I do not believe light has this issue.

Answer 10

Light is the fastest moving thing in the universe. That's why people say that if you can move faster than the speed of light, you can see the past.