75 km per second = 14,763,779.5 feet per minute.
205.3 feet per second at 140 mph
27,404 feet per second is 18,685 miles per hour.
70 mph = 369,600 feet per hour.
About 1.364 miles per hour.
They are very close but 18 feet per second is slightly faster: 12.2727 mph
352 feet per second
6 feet per second is: 6 / 5280 = 0.0011363636 miles per second. So for miles per hour, multiply by 3600. This gives 4.1 miles per hour.
60 mph
860 feet per 6.5 seconds = about 90.21 mph.
1,000 feet per minute is about 11.363 miles per hour.
1 mile per hour = 22/15 = 1.4666... feet per second (rounded, repeating)The following are exact numbers:-- 15 miles per hour = 22 feet per second-- 30 miles per hour = 44 feet per second-- 60 miles per hour = 88 feet per second-- 90 miles per hour = 132 feet per second-- 120 miles per hour = 176 feet per second
203.66 feet per second is 138.86 miles per hour.
75 miles per hour = 110 feet per second
40 feet per second is 27.27 miles per hour.
30 mph = 30 x 5280 feet per hour = 30 x 5280/3600 ie 44 fps
184 feet per second is 125.45 miles per hour.
3 miles per hour is equal to 4.4 feet per second.