You want meters per second or km/h? I don't know if I can find mph.
Meters per second, it is said the maximum reached was by Donovan Bailey at around 12.1m/s, that translates into about 27km/h.
nope ..multiply m/s by 3.6 to get km/h.
then divide by 1.6 to get mph.
i.e. 44km/hr, or 27mph.
ps i just checked the story out.....it was aided by a maximum possible wind of 2m/s. This is the legal limit allowable. So he had the best wind conditions he could want.
Generally 1 m/s wind at your back is between 0.05 and 0.08 seconds assistance depending on the athlete. A head wind is actually relatively worse.
as an example, if Justin had run a non WR at 9.8 with 1 m/s, then it could be argued that it was a superior performance to the WR 9.76 with 2m/s.
an example of how good the conditions were was that second place finisher recorded 9.84s...a PB and natinal record...and this guy is an also ran in Championships..
so please, lets keep it in perspective.
if it was 9.71 then that would be different.