An object of mass m sits on a flat table. The Earth pulls on this object with force mg, which we will call the action force. What is the reaction force?These videos are part of a unit of instruction created by NJCTL. Students and teachers can find additional free instruction on this topic at the site listed below. This includes the full unit presentation, homework with solutions, and assessments (teachers only).Dynamics Presentation - http://njctl.org/courses/science/algebra-based-physics/dynamics/dynamics-presentation-4/
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