world class times in the 100 meters foot race areabout 9.10 seconds. how far is that in miles per hour
100 m x (39.37 in/m) x (1 ft/12 in) x (1 mi/5280 ft) = ?? miles.
9.1 s x (1 min/60 sec) x (1 hr/60 min) = xx hours.
Therefore, 100 m/9.1 sec = ??miles/xx hours.