The coordinates of the center of mass for the extended object shown in the figure are (L/4, −L/5). What are the coordinates of m1? (Assume m1 = 4 kg, m2 = 2 kg, and m3 = 3 kg. Use any variable or symbol stated above as necessary.)
Here is the diagram : http://tinypic.com/view.php?pic=33da26e&s=7[
Can someone check my work?
4(x,y) + 3(-L/4,-3L/10) + 2(-3L/4,-L/4) = 0
-( 4x,4y) +(-3L/4,9L/10) + (-3L/2,-L/2) = 0
-4x - 3L/4 - 3L/2 = 0
-4y + 9L/10 - L/2 = 0
-4x = 9L/4
-4y = 4L/10
x = -9L/16
y = -L/10
P.S. please let me know what errors I made, if any.