Re: No infinite energy needed for lightspeed

Eric Gisse wrote:
On Sep 12, 5:18 pm, "Spaceman" <space...@xxxxxxxxxxxxxxxxxxxxxxxxxx>
wrote:
Mass does not gain mass with speed,
It gains energy. (KE)
The energy it gains is a direct consequence
of the energy you give it.
the mass never changes from the speed,
The Kinetic energy it can produce does
but the mass remains the same.

1 kilogram of mass at the speed of light does not
need infinite energy at all.
It needs a whole bunch... but not infinite.
Or are both
E=mc^2
and
KE=1/2mv^2
wrong?

Tell us how E = mc^2 is derived, space***.

Who cares.
The m still does not grow with speed.
m is a constant of an object.
It gains energy with speed, not mass.



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