how is the mass of object changed at speed of light?

Question

i read it in my book that mass of an object changes when it move comparable to velocity of light but it is not mentioned there that y does it happens and how does it happens? and what are its consequences? if u can plzz help me with it...

Answer 1

It doesn't change.

The mass is the mass is the mass is the mass. We usually call it rest mass to avoid this confusion due to archaic notation--people used to try to define an effective inertial mass that changes with speed. That notation causes more confusion than it's worth. So MASS DOESN'T CHANGE. Elementary school textbooks written in the 60s might say differently, but such is life.

The kinetic energy does go up to infinity assymptotically as a massive particle approaches the speed of light, though. It takes more and more and more energy to bring the particle closer and closer and closer to the speed of light. This is why a particle with a rest mass can not go to the speed of light.

Answer 2

If you can go on accelerating that mass, its velocity will go on increasing. As it approaches the velocity of light in vacuum, the mass starts increasing. At v = c, the mass becomes infinitely large. Actually as the velocity approches c, the mass becomes so large that more and more energy is needed to move it faster and thus the acceleration can never be sufficient to take the velocity to that of light in vacuum. This is part of the special theory of relativity.

Similarly time dilation takes place and at v = c, time stops.

Answer 3

The mass would be infinite at the speed of light. That is why nothing with mass can attain the speed of light.

I'm no where near smart enough to know exactly why that happens.......

Answer 4

Now as you asked,right here there is confusion surrounding the challenge of mass in relativity. that is because of the fact there are 2 separate makes use of of the term. each and every so often human beings say "mass" whilst they recommend "relativistic mass", mr yet at different circumstances they say "mass" whilst they recommend "invariant mass", m0. those 2 meanings are actually not the comparable. The invariant mass of a particle is self sufficient of its velocity v, while relativistic mass will boost with velocity and has a tendency to infinity because of the fact the speed methods the fee of sunshine c. they may well be defined as follows, mr = E/c2 m0 = sqrt(E2/c4 - p2/c2) the place E is potential, p is momentum and c is the fee of sunshine in vacuum. the speed based relation between the two is, mr = m0 /sqrt(a million - v2/c2) Of the two, the definition of invariant mass is plenty favored over the definition of relativistic mass. recently whilst physicists communicate approximately mass of their learn they constantly recommend invariant mass. the logo m for invariant mass is used without the suffix 0. notwithstanding relativistic mass isn't incorrect it oftentimes leads to confusion and is way less smart in progressed purposes inclusive of quantum container theory and commonplace relativity. using the be conscious "mass" unqualified to point relativistic mass is incorrect because of the fact the be conscious by potential of itself will frequently be taken to point invariant mass. case in point, whilst physicists quote a cost for "the mass of the electron" they recommend invariant mass. WHY DOES MASS replace??? in short the rest mass isn't changing..the place because of the fact the the potential won by potential of the speed of the article is changing its invariant mass IN straightforward words because of the equivalence of potential and mass, the potential which an merchandise has through its action will upload to its mass and the potential linked with action looks as one greater mass, so issues get heavier whilst they flow. Coming on your question,the mass(i.e invariant mass) is including up because of the fact the article is accomplishing to the speed of sunshine,so the mass is increasing subsequently Mass right here is extremely won yet not got rid of. we won't be able to do away with the mass(i.e invariant mass),extremely we are able to boost it by potential of moving with extreme velocities

Answer 5

Its too critical question. I can understand but i can not explain. The following sites may help -

http://www.lbl.gov/MicroWorlds/teachers/massenergy.pdf
http://www.newton.dep.anl.gov/askasci/phy99/phy99186.htm