In what way does the theory of relativity include mass?

Question

Is it that when an object aproaches the speed of light it becomes larger in mass hence that it can never reach the speed of light?

Answer 1

Based on E=Mc sqrd than mass is just a storage form of energy. When you invest enough energy in an object, it gains mass. In order to travel at the speed of light you need TREMENDOUS amounts of energy. So much that that energy is converted to mass. The object then gets heavier, and you need EVEN MORE energy to go faster.......
Therefore it is impossible to travel faster than light in the universe bound by our laws of physics.

Answer 2

In Einstein relativity theoryThe formula for mass changes is ;
Mn = Mo x [1-v^2/c^2 ]^1/2 as v aproaches c , Mn approaches infinity. Whereas the Mass increase magically and its size decreases in direction of motion as velocity aproaches C" . It would take a lot of power to push an electron to the speed of light an an extremely long time

Per Dr.Ricardo Carezani Relativity, the relativistic formula for mass change due to its increased velocity is a decreasing function. Basically the Inverse of Einstein's formula.
Here as velocity apoaches the speed of light the relativistic mass aproches a limit as velocity aproaches 70%of light speed..Since mass is lost its volume decreases.
Perhaps the Carezano Relativity theory is a more refined theory
In General relativity mass is thought to be the cause of gravity and is measured as a function of spacetime curvature. It means if mass is sitting in Universe, the volume of space displaced indicates a curvature of spacetime.So if you wanto know what the gravity field is between the sun and the moon you can calculate as a spacetime curvature. This is done by Using Einstein's field Equation.
Simple elegant formula.

Answer 3

General relativity basically accomplishes 3 things.

1. Uniform motion is unrecognisable from rest.
2. Acceleration unrecognisable from rest with a gravitational field.
3. Space and time are interconnected, making spacetime.

Matter incorporated into this because matter all experiences these effects (#1 & 2), and all matter causes spacetime to warp (#3), this warpage being gravity. The event you describe is related to E=m*c squared), and doesn't have much to do with general relativity.