A car is traveling at 65 miles per hour. What is the car's speed in feet per second?
60mph = 88 ft / s
So
x / 65 = 88 / 60 cross-multiply
60x = 88 * 65 divide by 60
x = [ 88 * 65 ] / 60 ≈ 95.333 ft / s
65 m/hr x 1/3600 sec/hr x 5280 ft/m = 95.33 ft/sec
