Question

What happens to mass at speeds near that of light?

Answer 1

If the speed gets close to the speed of light the mass grows to infinity

Explanation:

If the body is in movement at speed close to the speed of light its mass is equal to:

`m=m_0/sqrt(1-v^2/c^2)`

where:

`m_0` is the mass when the body is not moving
`v` is the body's velocity
`c` is the speed of light

From this formula we can see that as the velocity gets closer to `c`, the denominator gets closer to `0` so the mass gets bigger and goes to infinity.