With this information, you can calculate the quantity of feet per second 686 knots is equal to.
¿What is the inverse calculation between 1 foot per second and 686 knots?
Performing the inverse calculation of the relationship between units, we obtain that 1 foot per second is 0.00086367901 times 686 knots.
Which is the same to say that 686 knots is 1157.8376 feet per second.
Six hundred eighty-six knots equals to one thousand one hundred fifty-seven feet per second. *Approximation
A foot per second is zero times six hundred eighty-six knots. *Approximation
