Ok so I've been given this problem for one of my classes (see attatchment) :(adsbygoogle = window.adsbygoogle || []).push({});

I haven't done much with differential equations before and I'm a bit stuck. What has been putting me off is the fact that it says the vessel has a constant cross sectional area A. which I am guessing is the grey shaded area.

I don't understand how whether the differential equation is meant to include this A term. Surely it can't be constant if the height of the water varies?

Any help would be greatly appreaciated.

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# Rate of flow - height of water problem

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