This really is defined since the sum of your torque Στ as a result of forces performing over the body (about an axis passing through the center of mass G, and pointing while in the z-way). Using ΣMG is just another naming convention. In two-Proportions, to find the angular acceleration http://dallasemwyv.mybloglicious.com/17774472/the-ultimate-guide-to-boulder-colorado-yoga