Since the increase in energy is accompanied by an increase in mass, mass and energy are considered equivalent, expressed by:
$$E=mc^{2}$$
where,
E— energy;
m— mass;
c— speed of light in a vacuum.
As the velocity approaches the speed of light in a vacuum, the velocity cannot significantly increase, and the mass of the body begins to increase, storing energy as additional mass.
The speed of light in a vacuum is a physical constant with a value of:
$$c=299,792,458 \frac{m}{s}$$
FAQ
What does E = mc2 mean?
It means mass and energy are interchangeable, with energy equal to mass times the speed of light squared.
Why does the speed of light matter?
The speed of light sets the conversion factor between mass and energy in relativity.
Where is mass-energy equivalence used?
It appears in relativity, nuclear physics, and any calculation involving energy released from mass.
