If this plain is extremely wide and big, then gravitational field lines will be parallel to each other (like the case with electromagnetic lines for parallel plains). In that case gravitational acceleration will be constant, independently of the distance to the plain. In that case, if some object is placed far from the plain and starts to accelerate, its acceleration will be constant and independent of mass and time. Why can't this object exceed the speed of light then?
2006-07-24 19:14:44 · 4 answers · asked by Synaps 2 in Science & Mathematics ➔ Physics
Your mind experiment is ingenious but you are thinking in terms of Newtonian dynamics. What you have imagined is indeed a device capable of transferring an indefinite quantity of kinetic energy to a mass probe, and you expect in consequence an indefinite increase of its speed.
This is not true in relativistic dynamics, where mass is no longer an invariant. An increase in kinetic energy produces a corresponding increase in both speed and mass, in a manner that the speed remains below the speed of light, no matter how much energy you employ.
Only one of the many counter-intuitive aspects of relativity theory.
2006-07-24 21:58:10 · answer #1 · answered by Flavio 4 · 2⤊ 0⤋
As an object speed increases the mass increases as the object reaches the speed of light the mass increases to infinity. If the mass increases the body "warps" the space-time around it.
Reffer to wikipedia
http://en.wikipedia.org/wiki/General_Relativity
http://en.wikipedia.org/wiki/Special_Relativity
2006-07-25 03:04:42 · answer #2 · answered by Matthew R 1 · 0⤊ 0⤋
You just keep accelerating till you're traveling the speed of light!
2006-07-25 17:47:59 · answer #3 · answered by Balthor 5 · 0⤊ 0⤋
It can never be that fast because light has no mass(i think so).
2006-07-25 03:02:42 · answer #4 · answered by Nicholais S 6 · 0⤊ 0⤋