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What is the center of mass of a system?
How do you estimate the center of mass of 2 unequal mass objects?
When the net external force on a system is zero, the velocity of the center of mass ________________
__________ forces do not affect the velocity of the center of mass of a system, but _____________ forces do.
Objects tend to rotate around their _________ __ ______ when no other pivot point is likely.
