Centar of Mass match the Centar of Force;Explain!

Posted by dock on January 23, 2004 at 07:09:53:

The centar of force is given with:
{sum(F_i)}x{sum(D_i)}=sum(F_ixD_i)
because F_i=lambda M_i follows:
{sum(M_i)}x{sum(D_i)}=sum(M_ixD_i)
----------------------------------
F_i,M_i and D_i are all 3d vectors;
their axeses are related like this:
D_i=F_{(i+1)mod3}=M_{(i+1)mod3}
==================================
How would you explain this perfect
match of the center of force and
the center of mass in geometry?

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