Athin flat plate is arranged parallel to a bottom fixed plate at a distance ot 8.0 c the space between the plates is filled with a 2-cm thick layer of fluid of viscosity, 2 the bottom and another fluid of viscosity, u above it. when the top plate is pulled at a velocity of 4.0 m/s. determine the velocity at the fluid interface knowing that it has only one shear stress. sketch the velocity distribution within the fluids, assuming it is linear