(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Ok, I have the normal Y(up) and x(to the right) axis. I've got the curve(starting at orgin) y^2=x. On the x axis, it goes to x =4 inches. So, that is the area i'm looking at(shaded).

Question states this:

Find the second moment of the shaded area with respect to

a) x - axis

b) y - axis

I'm not exactly sure how to do this....but I tried.

Oh, and I found the top of the curve, is at y=2.

2. Relevant equations

3. The attempt at a solution

Ix = int(y^2 * dA)

= int(from 0 to 2)(y^2 *(4-y^2) dy = 4.27in^4

Is this portion correct? I'm not sure

Thanks,

Brad

**Physics Forums | Science Articles, Homework Help, Discussion**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Second moment of area

**Physics Forums | Science Articles, Homework Help, Discussion**