100 kilometres/ hour = 62.5 mph
so 100 kilometres/ hour would be faster
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About 62 miles.
62.14 mph
100 meters/9 seconds = 40 kilometers per hour = 24.85 miles per hour (rounded)
It depends on the speed. At 10 miles per hour 100 miles is 10 hours. At 100 miles an hour it is 1 hour. At 1000 miles an hour it is 0.1 hour (= 6 minutes).
100 m/s