1 hour = 3,600 seconds
so
1 mile in 21.851 seconds = 3600 / 21.851 = 164.75 miles per hour
There are 5280 feet in a mile, and 3600 seconds in an hour. Thus: 22 ft/s = (22/5280)(3600) = 15 mph.
One mile in 4.13793 minutes if running at 14.5 mph.
22.73 mph
27 miles per hour.
It takes 45 seconds.
Approx 18.56 mph.
Approx 16.17 mph.
55.3 mph
About 9 minutes 40 seconds.
A quarter mile in 10.6 seconds = about 85 mph average speed.
About 163 mph
80 mph
3600/28 mph
If your average speed for the whole mile is 4.5 mph, your finishing time will be around 13 minutes 20 seconds.
About 767 mph ... it varies with temperature. OR about one mile in 5 seconds.
If a runner runs a mile in 4 minutes 30 seconds he is averaging 13.33 MPH over the total distance.
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