5,280 feet is exactly one mile.
35 000 feet = 6.62878788 miles
9 miles/hour * (5280 feet/mile) * (1 hr/3600 s) = 13.2 ft/s
First convert to feet per hour by converting the miles to feet by multiplying by 5280 as there are 5280 feet in a mile Now convert to feet per second by converting the hours to seconds, but as the time is on the bottom of speed = distance/time, divide by 3600 as there are 3600 seconds in an hour → 60 miles/hour = (60 × 5280) ÷ 3600 ft/s = 88 ft/s
There are 58.67 90-foot segments in 5,280 feet.
1 mile = 5280 ft 1 hour = 3600 seconds 105 miles/hour = (105 x 5280 ft) / (1 x 3600 seconds) = 154 ft/s
You need to know the conversion rates for both miles to feet AND hours to seconds. There are 5280 feet in a mile and 3600 seconds in an hour. 90mi/1hr (5280 ft/mi)(hr/3600 s) You want the units to cancel out, so that's how you decide to put mi and hr in the numerator or the denominator. For miles to cancel out, it has to be in the denominator of the conversion factor and vice versa for hours. After the units cancel out, you're left with: (90)(5280 ft)/(3600 s) = 475200 ft/3600 s = 132 ft/s
483 ft/s (1 mile/5280 feet)(3600 seconds/1 hour) = 329 mph =======
861 ft/s * 3600 s/hr / 5280 ft/mi = 587.045 mph
167/308 seconds ≈ 1.22 seconds. 1 hour = 3600 seconds 1 miles = 5280 feet ⇒ 28 miles = 28 x 5280 feet = 147840 feet ⇒ mph = 147840 feet ÷ 1 hour = 147840 ÷ 3600 feet/second = 616/15 ft/s time = distance ÷ speed = 50 feet ÷ 28 mph = 50 feet ÷ (616/15 ft/s) = 375/308 seconds ≈ 1.22 seconds
There are exactly 5280 feet per mile and exactly 3600 seconds per hour. Therefore, to convert feet per second to miles per hour, multiply by (3600/5280), with as many significant digits as justified by the other numbers specified by the problem. In this instance, using the questioner's decimal convention (which could mean 50,000 in the U. S.), the answer is 34.091 miles per hour.
1 mile is 5280 feet. One fourth of that is 1320 feet. ------------- In terms of yards, 1 mile equals 1760 yards. One fourth of that is 440 yards.
6 m/h (5280 ft/1 mi)(1 hr/3600 s) = 8.8 feet per second ==============