There are 3600 seconds in one hour. Therefore, 1 mile in 52.5 seconds is equal to 3600/52.5 = 68.571428 recurring (that is, 68.571428571428...) or 68 4/7 miles per hour.
1 mile in 30 seconds is 120 miles per hour!
90 miles per hour.
120 miles per hour.
1 hour = 3,600 seconds so 1 mile in 21.851 seconds = 3600 / 21.851 = 164.75 miles per hour
1 mile/10 sec = 6 mile/minute = 360 miles/hour
60 miles per hour !
5.65 miles per hour for one mile.
A mile in 2 minutes 20 seconds equates to an average speed of 25.7 miles per hour.
53s per mile means you go 0.188 miles/s (1/53)or 1.13 miles/min (x60) or 67.9 miles/hour (x60)
1 mile per hour is 1 mile every 3600 seconds. I mile per second is 3600 times faster than this hence, 3600 miles per hour.
(1 mile / 75 seconds) x (3,600 seconds / hour) = 48 miles per hour
The pace to run a half mile in 4 minutes 13 seconds is 7.12 (7.11462451) miles per hour.