As I stated before, my students (regular and honors) find forces to be
the
hardest topic. The third law is particularly challenging. A book rests
on a
table. If the book's weight (true weight, mg) is the action force, then
the
reaction force is the ___ on the ____ acting _____. Nobody gets this
right!
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No offense, but I take the view that that can be a sign of a poor
question.
I'm not sure exactly what you're looking for myself to be honest.