Answer:
c.m=(1/∑mi)*∑mi*yi
[tex]c.m.=\frac{m*d+2m*3d}{m+2m}=7d/3[/tex]
Explanation:
We solve this problem, with the equation for the center of mass:
c.m=(1/∑mi)*∑mi*yi
[tex]m_i:[/tex] represent the different mass of the system
[tex]y_i:[/tex] represent the position of the different mass of the system
c.m=(1/∑mi)*∑mi*yi=(1/(m+2m))*(m*d+2m*3d)=7d/3
