Example 7-12 A group of extended bodies, each with a known CM. Find the CM of the group.

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Presentation transcript:

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  CM is outside the body! Use the Table!! Can have the CM outside of the body!  CM is outside the body!

Conceptual Example 7-14