1.

Consider fluid flow between two infinite horizontal plates when are parallel (the gap between them being 50 mm), The top plate is sliding parallel to the stationary bottom plate at a speed of 3 m/s. The flow between the plates is solely due to the motion of the top plate. The force per unit area (magnitude) required to maintain the bottom plate stationary is ________ N/m2. Viscosity of the fluid = 0.44 kg/ms and density p = 888 kg/m3.

A. 26.4
B. 26.9
C. 26.7
D. 26.8
Answer» B. 26.9


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