A liquid flows down an inclined plane surface in a steady, fully developed laminar film of thickness \(h\)
(1) Simplify the continuity and Navier-Stokes equations to model this flow field.
(2) Obtain expression for the liquid velocity profile.
(3) Obtain expression for the shear stress distribution.
(4) Obtain expression for the volume flow rate.
(5) Obtain expression for the average velocity.