With this information, you can calculate the quantity of feet per second 221 miles per hour is equal to.
¿What is the inverse calculation between 1 foot per second and 221 miles per hour?
Performing the inverse calculation of the relationship between units, we obtain that 1 foot per second is 0.0030851501 times 221 miles per hour.
Which is the same to say that 221 miles per hour is 324.13333 feet per second.
Two hundred twenty-one miles per hour equals to three hundred twenty-four feet per second. *Approximation
A foot per second is zero times two hundred twenty-one miles per hour. *Approximation