What to do with circular motion ... the length of the string (L). From the diagram above, the radius of the circle of motion would be: So the velocity (magnitude) would be: Now putting this ...

Diagrams of Mean Velocity of Uniform Motion of Water in open Channels, based on the Formula of Ganguillet and Kutter. By Prof. Irving P. Church. 11 Diagrams + 1 page Text. (New York: Wiley and ...