The world record for the hundred meter dash is 9.77 s. what is the corresponding average speed in units of m/s, km/h, ft/s, and mi/h?

The answer is

in (m/s) : 100m / 9.77s = 10.2354 m/s

in (km/h) : (100/1000 or 0.1) km / (9.77/3600 or 0.002714) h = 36.84 km/h

in (ft/s) : 33.5807 ft / s

in mi / h : 22.8959 mi / h

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