- #1

JJBladester

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## Homework Statement

The hydrostatic pressure term in the Bernoulli equation (ρgz)

*decreases*with fluid depth. Why?

## Homework Equations

Bernoulli Equation (multiplied by density ρ to give us pressure units):

[tex]P+\rho\frac{V^2}{2}+\rho gz=constant[/tex]

## The Attempt at a Solution

In the hydrostatics chapter in my book, hydrostatic pressure, ρgh,

*increases*with depth. However, in the Bernoulli equation, the hydrostatic pressure term ρgz

*decreases*with depth.

Is this just because we're selecting a coordinate system where the vertical direction faces up instead of down?

What physical significance does this have?