1 mile per hour equals 44.7 centimeters per second.
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None. A second is a measure of time. A mile per hour is a measure of speed. The two measure different things and, according to basic principles of dimensional analysis, conversion from one to the other is not valid without some addition information.
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
250 km per hour = 0.04315 miles per second.
Six miles per second is the same as 21,600 miles per hour or 34,760 kilometers per hour.
3.5 (miles per second) = 20,277.73 km per hour.