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elevator

The elevator

Consider a cubical tank, with a side length equal to h resting on the horizontal floor of an elevator. The tank is filled entirely with water and then sealed hermetically. Suddenly, the elevator starts moving downwards with an acceleration equal to ½g.
a) Derive an expression for the pressure variation inside the tank.
b) What is the difference between the maximum and minimum pressures.

 

Contributed by Stavros Tavoularis, Department of Mechanical Engineering, University of Ottawa, Ottawa, Canada.

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