1. The problem statement, all variables and given/known data The velocity distribution for the floe of a newtonian fluid between 2 wide parallel plates is given by the equation u=3V/2[1-(y/h)^2] where V is the mean velocity. The fluid has a viscosity of 1.915Ns/m^2. When V=0.61m/s and h=5mm, determine: A) the shearing stress acting on the bottom wall. B) the shearing stress acting on a plane parallel to the wall. C) the shearing stress at the centerline. 2. Relevant equations ζ=μ du/dy 3. The attempt at a solution For C) I worked out u=0.915[1-y^2/2.5X10^-3] From that I worked out ζ=1.915 X 0.915[1-y^2/2.5X10^-3] X 1/dy. I have no idea how to work out B). I think A) =0 as there is no velocity there? I could be very wrong saying that though.