Depends on the time, average speed = distance / time
Usain bolts record time is 9.58 seconds, giving an average speed of:
100 / 9.58 = 10.438 metres per second ( 23.349 mph )
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His maximum speed during the run however, was recorded at 12.22 metres per second ( 27.335 mph )
That is a very good time for a human runner. It equates to an average speed of 12 miles per hour.
Assuming the runner maintains his average speed for an hour, 3 kilometres in 30 minutes is equal to 6 kilometres per hour.
Her average speed was 58 miles per hour.
The train's average speed was 34.5 miles per hour.
If you go 20 miles in 14 minutes your average speed is 85.71 miles per hour.
That is a very good time for a human runner. It equates to an average speed of 12 miles per hour.
The average travel speed of a wolf is 5 miles per hour
Assuming the runner maintains his average speed for an hour, 3 kilometres in 30 minutes is equal to 6 kilometres per hour.
Her average speed was 58 miles per hour.
15km/hour
The train's average speed was 34.5 miles per hour.
If you go 20 miles in 14 minutes your average speed is 85.71 miles per hour.
The average speed of the Caltrain is fifty-five miles per hour, but it has a top speed of seventy-nine miles per hour.
The average speed is 2050/5 = 410 miles per hour.
Your average speed is 44.3 miles per hour.
Your average speed is 11.25 miles per hour.
Your average speed is 10 miles per hour.