1. (10 pts) Consider the "drag of a sphere" problem discussed in the classroom, which was analyzed using the Buckingham II method. In the class we assumed that the drag

D was a function of flow speed V(infinity), air density p(infinity), viscosity U(infinity), and diameter d, i.e., D=f(V;infinity;Pinfinity,Uinfinity).A student in the class wanted to know what would happen if instead of using density p. as one of the three repeating variables we were to use viscosity Hloo instead. Use the Buckingham method to find out what happens. Comment on your result.