(A) Turbulent pipe flow- When the flow of fluid is not in lamina , as they produce eddy current and here the Reynold number of fluid flow exceeds 4000 .
Laminar flow- In this fluid flow all the layesr of fluid flow in a prticualr lamina they does not produce eddy current. Reynold number for laminar flow is less than 2000.
(B) Newtons law- As per the newtons law of viscosity the rate of shear strain is directly proportional to shear stress.
As per the linear conservation of momentum momentum before collision is equal to momentum after collision.
(C) Angular momentum - It is the product of moment of inertia to its angular velocity.
I=Moment of inertia , angular velocity