There is a downward vertical flow situation between the two parallel plates of a Newtonian fluid and a Bingham fluid.

1. Make the analysis of forces in a differential element, showing the direction of the forces acting on it, carry out the summation of forces using ||, justifying the elimination of the absolute value,

2. Define the boundary conditions,

3. Integrate the equation until finding the velocity profile and find the value of the maximum velocity for both fluids. Which is greater? The two types of fluids is one Newtonian and the other Bingham