Multiply 45 by 60 and you'll have your answer !
1/60 minutes in a second
24,000
80.67 feet per second.
240 mintues
uhhh, is it maybe 30ft?
At 55 mph you are traveling 80.66 feet per second and after one hour at that speed you will have traveled 290,400 feet.
20 feet in 0,5 seconds ==> 40 feet per second 40 feet per second * 3 seconds = 120 feet
150
A kilometre is a unit of distance. Feet per second is a unit of speed. The two units are therefore incompatible.
It can't be done. 20 feet per second per second is acceleration, but mph is a speed.
At top speed, a cheetah can run about 70 miles per hour. That equates to 102.7 feet per second.
3 hours and 45 minutes