The velocity distribution for flow over a plate is given by u = 0.5 y

1.	The velocity distribution for flow over a plate is given by u = 0.5 y - y2 where u is the velocity in m/s at a distance y metre above the plate. If the dynamic viscosity of the fluid is 0.9 N/m2, then what is the shear stress at 0.20 m from the boundary?
A.	0.9 N/m2
B.	1.8 N/m2
C.	2.25 N/m2
D.	0.09 N/m2
Answer» E.

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The velocity distribution for flow over a plate is given by u = 0.5 y - y2 where u is the velocity in m/s at a distance y metre above the plate. If the dynamic viscosity of the fluid is 0.9 N/m2, then what is the shear stress at 0.20 m from the boundary?

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