With this information, you can calculate the quantity of feet per second 390 miles per hour is equal to.

¿What is the inverse calculation between 1 foot per second and 390 miles per hour?

Performing the inverse calculation of the relationship between units, we obtain that 1 foot per second is 0.0017482517 times 390 miles per hour.

Which is the same to say that 390 miles per hour is 572 feet per second.

Three hundred ninety miles per hour equals to five hundred seventy-two feet per second. *Approximation

A foot per second is zero times three hundred ninety miles per hour. *Approximation