```
Ek = 1/2 mv^2
```
where:
* Ek is the kinetic energy in joules (J)
* m is the mass of the motorcycle and rider in kilograms (kg)
* v is the velocity of the motorcycle in meters per second (m/s)
The finishing energy of a motorcyclist braking to halt is zero, as all of the kinetic energy of the motorcycle and rider has been converted into other forms of energy, such as heat and sound.
