where is the increase in mass by increasing energy given by the relation e=mc^2 stored?

Question

this is a question that is buggin me since ninth grade. pls hlp.

Answer 1

When the particle is at rest its energy
E0 = m0 c^2.
m0 is the rest mass and E0 is the rest mass energy.

When it moves with a speed v, its mass increases to m .
Now its energy is Ev = m(v) c^2.
m(v) is the mass when the speed is v and Ev is its total energy when the speed is v.

Ev - E0 = {m(v) - mo } c^2.

Ev - E0 is the kinetic energy of the particle and
{m(v) - mo } is the increase in mass due to its speed v.

Answer 2

This is an interesting question. I recall some discussion that danced around this issue in the book Spacetime Physics by Taylor and Wheeler.

And I think the current trend is to say mass is an invariant -- it does not increase as speed increases. Old books talk about "relativistic mass" but that concept has gone out of favor.

I also recall a short paper in the American Journal of Physics within the last few years discussing exactly what Einstein really meant by the symbol E. I wish I could remember the title and author....maybe I'll try to dig it up.

Answer 3

Where was the original mass stored?

Answer 4

it is the opposite, increase the mass and the energy increases, take note that c is a constant.....