With this information, you can calculate the quantity of feet per second 721 kilometers per hour is equal to.
¿What is the inverse calculation between 1 foot per second and 721 kilometers per hour?
Performing the inverse calculation of the relationship between units, we obtain that 1 foot per second is 0.0015218863 times 721 kilometers per hour.
Which is the same to say that 721 kilometers per hour is 657.07932 feet per second.
Seven hundred twenty-one kilometers per hour equals to six hundred fifty-seven feet per second. *Approximation
A foot per second is zero times seven hundred twenty-one kilometers per hour. *Approximation
