None, since there can be no conversion.
A foot is a measure of length in 1-dimensional space while a min is a measure of time or of angular displacement. The two measure different characteristics and, according to the most basic principles of dimensional analysis, any attempt at comparisons or conversions between the two are fundamentally flawed.
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(48 ft./s)(1 yd./3 ft.)(60 s/min.) = 960 yd./min.
22 ft / min * 60 = 1320 ft / hour 15 mi / hr * 5280 = 79200 ft / hour
A is the fastest unit rate.Change everything to the same units, e.g. feet per minute, so that you can compare them:A. 30 mi/hr * (5280 ft/1 mi) * (1 hr/60 min) = 30*5280/60 ft/min = 2640 ft/min. [notice that (5280 ft/1 mi) and (1 hr/60 min) are both fractions equal to 1. This is the key to unit conversions.]B. 40 feet/sec * (60 sec/1 minute) = 40*60 ft/min = 2400 ft/min.C. 700 yards/min * (3 ft/1 yd) - 700*3 ft/min = 2100 ft/min.D. 2200 ft/min.
nine minutes
60 seconds!