Answer:

Step-by-step explanation:
The kinetic energy of a rigid body that travels at a speed v is given by the expression:

The equivalence between mass and energy established by the theory of relativity is given by:

This formula states that the equivalent energy
can be calculated as the mass
multiplied by the speed of light
squared.
Where
is approximately

Hence:


Therefore, the ratio of the person's relativistic kinetic energy to the person's classical kinetic energy is:
