Homework Answers
F = n*A*dv/dy
n = kinematic viscosity of oil = approx 0.992 poise
A= 0.4 x 104 cm2
dv = 25cm/s
dy = 16 mm = 1.6 cm
Since the thin plate has same oil on either side the data of 12 mm from one side becomes irrelevant.
F = 0.9928 x 0.4 x 104 x 25/1.6 = 62.05 x 103 Dyne = 62.05 x 103/ 105 = 0.6205 N.
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