Question

Two large plane surfaces are 20mm apart and the gap contains oil of dynamic viscosity 0.60 Pa.s. A thin plate of cross sectional area 0.50m2 is to be pulled through the gap at a constant velocity of 0.60 m/s. The location of the plate will have to be such that it is 8 mm from one of the surfaces. Neglecting edge effects, estimate the force required for pulling the plate as above.​

Answer 1

Answer:

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