Consider a thin square plate floating on a viscous liquid in a large tank. The height h of the liquid in the tank is much less than the width of the tank. The floating plate is pulled horizontally wit

Question

Consider a thin square plate floating on a viscous liquid in a large tank. The height h of the liquid in the tank is much less than the width of the tank. The floating plate is pulled horizontally with a constant velocity u 0 . Which of the following statements is (are) true?

TestHub · Accepted Answer

Viscous force is given by F = - η A d v d y since h is very small therefore, magnitude of viscous force is given by F = - η A ∆ v ∆ y ∴ F = η A u 0 h ⇒ F ∝ η a n d F ∝ u 0 ; F ∝ 1 h , F ∝ A Since plate is moving with constant velocity, same force must be acting on the floor

Physics - Fluid Question with Solution | TestHub

Options:(select one or more)

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