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Example 7-12 • A group of extended bodies, each with a known CM. Find the CM of the group. Center of Gravity • Center of Gravity (CG): Similar to Center of Mass. CG That point in extended body at which force of gravity may be considered to act. For practical purposes, CG = CM. Application to The Human Body Approximate as a collection of particles at various CM points Example 7-13 Use the Table!! Can have the CM outside of the body! CM is outside the body! Conceptual Example 7-14