Science:Math Exam Resources/Courses/MATH200/December 2011/Question 06/Statement

Let R be the triangle with vertices (0,2), (1,0), and (2,0). Let R have density $\displaystyle \rho (x,y)=y^{2}$. Find ${\bar {y}}$, the y-coordinate of the center of mass of R. You do not need to find ${\bar {x}}$.