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?
20 feet in 0,5 seconds ==> 40 feet per second 40 feet per second * 3 seconds = 120 feet
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.
A kilometre is a unit of distance. Feet per second is a unit of speed. The two units are therefore incompatible.
150
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