Tuesday, June 4, 2019

newtonian mechanics - Given Newton's Third Law, how can an inanimate object create a force?


Newton's Third Law states that



Whenever any force is exerted by a body#1 on any other body#2, another force which is equal in magnitude and opposite in direction is exerted on body#1 by body#2.



In theory, suppose a boy is pushing a rock heavier than him on ice. Due to the relative lack of friction, the boy would probably be pushed back more than the rock was pushed forward. How is this possible? How can an inanimate object create a force?




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