Two large parallel plates are separated by a small gap of distance 2 mm. See figure below. A fluid with dynamic viscosity µ = 10-3 Pa.s fills the gap between the plates. The surface area of each side of the plates is 2 m2. The top plate has a velocity 2.0 m/s in the

Question

Two large parallel plates are separated by a small gap of distance  2 mm.  See figure below.  A fluid with dynamic viscosity  µ = 10-3  Pa.s  fills the gap between the plates.  The surface area of each side of the plates is  2 m2.  The top plate has a velocity  2.0 m/s  in the  
x-direction, while the bottom plate has velocity  0.7 m/s  in the  x-direction.  A negative velocity signifies a velocity in the negative x-direction.

Determine the magnitude of the shear force  (Fτ)  on each plate in Newtons.