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Another question:
... but I
guess the case in question is the force which is accelerating the escaped
drinks trolley down the aisle to the back of the plane. OK, there seems to
be no 3rd law counterpart for this force.
So back to me seated in front of
my computer - I knock my coffee mug off the table and it falls to the floor.
In class (not the GR class) I would say that the Earth is pulling the
falling mug with force mg, and the mug is pulling the Earth back with
exactly the same force. Does this mean that mg is not fictitious after all?
...