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Anonymous
The world record holder in the 100 (10.49) and 200 (21.38), Florence Griffith Joyner ran between approximately 9.0 and 9.6 meters per second. Converted to km per hour thats between 32 and 35 km per hour
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The time is 14:11:15, ran by Tirunesh Dibaba from Ethiopia on 6 June 2008 in Oslo, Norway.