# Usain de Bolt-y Wavelength

**Classical Mechanics**Level pending

Usain Bolt, the world champion sprinter,hit a top speed of 27.79 miles per hour at the Olympics. If he has a mass of 94 kg, what was his de Broglie wavelength?

Express your answer as an order of magnitude in units of the **Bohr radius** \(r_{B} = 5.29 * 10^{-11} \text{m}\). For instance, if your answer was \(4 * 10^{-5} r_{B}\), your answer would be \(-5\).