100 kph = about 62.14 mph
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100 meters/9 seconds = 40 kilometers per hour = 24.85 miles per hour (rounded)
1 knot = 1.85200 kilometers per hour
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Speed = (distance)/(time) = exactly 100 meters per 11.2 seconds. In other, more familiar units: -- 32.143 kilometers per hour -- 19.97 miles per hour
200 mph