At the 2008 Olympics the Jamaican runner Shelly Ann Fraser ran the 100. meter dash in world record time of 10.78 seconds. What is this speed in miles per hour? [1 mile = 1.609 km]
A) 2.08 mph
B) 4.81 mph
C) 20.8 mph
D) 48.1 mph
C
Environmental & Atmospheric Sciences
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