- #1
brkomir
- 34
- 0
Homework Statement
Let ##\Sigma## be surface given as ##f(x,y)=\frac{1}{2a}(x^2+y^2)## above circle ##K((0,0),a)## for ##a>0##. Calculate the center of mass.
Homework Equations
If you are not familiar with ##K((0,0),a)## , that is a circle in point ##(0,0)## with radius a.
The Attempt at a Solution
I would attempt to get a solution if I would be able to imagine ##\Sigma##. If I understand correctly, ##f(x,y)## is also a circle with radius ##\sqrt{2a}## ? or...?
My question here is...: What does the fact, that the ##f(x,y)## is above a circle tell me?