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How rapidly will the fluid level inside a vertical cylindrical tank drop if we pump the fluid out at the rate of 3000 L/min ? Take area of base of cylinder=A.

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`(dV)/(dt)=300 L//"min"`
V=hA
`rArr " " (d(Ah))/(dt)=300`
`rArr " " (dh)/(dt)=(300)/(A) L//"min"`
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