With the unique velocity profile of each liquid, determine the distance from the leading center to that point of the profile where the velocity is 3.2 m/s.

Discuss and illustrate the laws of conservation of mass, conservation of energy, and conservation of momentum.

I need help with this problem

Consider a uniform flow of a liquid with velocity U and viscosity u past a square plate with side width L and negligible thickness (shown below). The square plate is then cut into two equal parts, with the lower part being moved and placed behind the upper part to form a long rectangular plate. Determine the drag force ratio with respect to the square plate.