With this information, you can calculate the quantity of feet per second 421 kilometers per hour is equal to.
¿What is the inverse calculation between 1 foot per second and 421 kilometers per hour?
Performing the inverse calculation of the relationship between units, we obtain that 1 foot per second is 0.0026063658 times 421 kilometers per hour.
Which is the same to say that 421 kilometers per hour is 383.676 feet per second.
Four hundred twenty-one kilometers per hour equals to three hundred eighty-three feet per second. *Approximation
A foot per second is zero times four hundred twenty-one kilometers per hour. *Approximation
