With this information, you can calculate the quantity of knots 28 feet per minute is equal to.
¿What is the inverse calculation between 1 knot and 28 feet per minute?
Performing the inverse calculation of the relationship between units, we obtain that 1 knot is 3.6167354 times 28 feet per minute.
Which is the same to say that 28 feet per minute is 0.27649244 knots.
Twenty-eight feet per minute equals to zero knots. *Approximation
A knot is three times twenty-eight feet per minute. *Approximation