A flat plate weighing 0.45 kN has a surface area of 0.1 m2 . It slides down
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Question:
A flat thin plate is dragged at a constant velocity of 4 m/s on the top of a 5 mm deep liquid layer of viscosity 20 centipoise. If the area of the plate is 1 m2 find the drag force. Assume variation of velocity in the liquid to be linear.
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