# physics

1) Two large vertical plates parallel to each other are 2mm apart. A thin flat plate of 1 mm thickness,0.6 m*0.6 m size and 25 N weight is towed vertically up b/w the two large plates with a velocity of 0.2 m/s. the inside plate is equidistant from the two stationary plates. The gap b/w the large plates is filled with oil of viscosity 1.6 poise. Calculate the vertical force required to tow vertically upward.

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posted by Anonymous

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