- #1

## Homework Statement

For a concrete column of constant cross sectional area, what is the maximum possible height if the compressible strength is 2.0 x 10

^{7}N/m

^{2}? The density of concrete is 2.3 x 10

^{3}kg/m

^{3}.

## Homework Equations

[tex]\frac{F}{A}[/tex]

## The Attempt at a Solution

I am not really sure what I am doing wrong, or what I have to do differently, but so far I have tried a few different things.

First I tried setting the force equal to 2*10

^{2}, and trying to solve for height:

[tex]\frac{2*10^7}{2.3*10^3*9.8}\approx890[/tex]

This was incorrect however. From there, I tried adding a π to the denominator, but that didn't work. I then tried taking the square root because I realized the r term was squared. After that I realized the r term doesn't even really have a place in the equation because I am looking for height, not radius. How do I correctly approach the problem? I honestly have no clue what I am doing here.