3,600 miles per hour.
To convert 22 feet per second to mph, multiply by 0.681818. So 22 feet per second is approximately 15 mph.
There are 5280 feet in one mile. Therefore, 1 mile per hour is equal to 5280 feet per hour. There are 3600 seconds in one hour. Therefore, 5280 feet per hour is equal to 5280/3600 = 1.46 recurring (that is, 1.46666...) feet per second.
There are 3600 seconds in one hour. Therefore, 32 feet per second is equal to 32 x 3600 = 115200 feet per hour. There are 5280 feet in one mile. Therefore, 115200 feet per hour is equal to 115200/5280 = 21.81 recurring (that is, 21.818181...) miles per hour.
If you go 135 feet in a second, you travel 135*60 feet in a minute:and you would travel 135*60*60 feet in an hour.5280 feet is a mile, so you would travel (135*60*60)/5280 miles per hour(135*60*60)/5280 = 92 mph (rounded)
There are 5280 feet per mile and 3600 seconds per hour. 24(5280/3600) = 35 feet per second, to the justified number of significant digits.
1 mile = 5280 feet 1 hour = 3600 seconds So, 55 mph = 55*5280 feet per hour = 55*5280/3600 feet per second = 80.66... fps
30 mph = 30*5280 feet per hour = 30*5280/3600 feet per second = 44 feet per second (The conversion factor from mph to fps is 22/15)
1 mile = 5280 ft 62.5 feet per second = 62.5 * 60 * 60 = 225000 feet per hour 225000 feet per hour = 225000/5280 = 42.6136 mph
340 feet/second equals 1,224,000 feet per hour or about 232 mph (231.8182).From the calculation (340 x 3600)/5280 feet per mile
15 miles/hour (5280 feet/1 mile)(1 hour/3600 seconds) = 22 feet per second
861 ft/s * 3600 s/hr / 5280 ft/mi = 587.045 mph
45 x 5280 feet / 3600 seconds = 66 feet per second