That means you ran 20 meters in one second, which is about 66 feet per second. This sounds very impossible, but in miles per hour, it was 237,600 mph. (The math: 20 meters=66 feet. 66 feet per second times 60 equal 3960 feet per minute. Times 60 again gives you 237,600 feet per hour. 60 second in a minute, 60 minutes in an hour.) then divide 237,600 feet by 5,320 and the answer is 44.66 mph. There are 5,320 feet in a mile.
Running 100 meters in 12.5 seconds is equivalent to running at a speed of 22.4 miles per hour.
98.63mph
2.5 seconds
If an object is travelling 100 meters in 1400 seconds, then it is travelling (100 / 1400) or about 0.0714 meters per second.
4.6 seconds in 100 m
11.8 seconds
12.6 seconds, walcott runs in 10.3 seconds
5.3 seconds for 100 yards.
11 seconds or so
You'd be a high-level college athlete to run that fast.
100 meters/9 seconds = 40 kilometers per hour = 24.85 miles per hour (rounded)
11.6 in 100 meters is 4.2 (4.242816) seconds in the 40-yard dash.