With this information, you can calculate the quantity of feet per second 28 knots is equal to.
¿What is the inverse calculation between 1 foot per second and 28 knots?
Performing the inverse calculation of the relationship between units, we obtain that 1 foot per second is 0.021160136 times 28 knots.
Which is the same to say that 28 knots is 47.258676 feet per second.
Twenty-eight knots equals to forty-seven feet per second. *Approximation
A foot per second is zero times twenty-eight knots. *Approximation
