# Fluids, Pressure on a Person?

jumbogala

## Homework Statement

What pressure does a person standing on the ground exert?

## The Attempt at a Solution

This has something to do with fluids, but I'm not sure what!

I think I should model the person as a cylinder and find the pressure on the person, then find what the pressure is on the ground?

I really have no idea, that was just a guess. I don't know how to find the pressure on the person either...

Can anyone please get me started?

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jumbogala
Okay so I found this F = p*a

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Gold Member
The force would be her weight (not her mass) and the area would be the one under her feet. Find the pressure.

jumbogala
I think I'm confused about the set up of the problem.

Force = 80 kg * 9.81 m/s^2

Area = area of top or bottom of cylinder?

then use F = area * pressure to find pressure?

So this has nothing to do with air pressure at all? Just confused because it's in with a bunch of other problems dealing with pressures from fluids, and I thought maybe air pressure contributes somehow.