A fluid flows past a sphere in streamline flow. The viscous force on the sphere is directly proportional to
A. the radius of the sphere
B. the speed of the flow
C. the coefficient of viscosity of the fluid
D. all of these.
Answer:D
A fluid flows past a sphere in streamline flow. The viscous force on the sphere is directly proportional to
A. the radius of the sphere B. the speed of the flow C. the coefficient of viscosity of the fluid D. all of these.