# 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 $$-5$$.

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