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Re: [Phys-l] definition of gravity



You are in a rocket whose motors are producing precisely enough thrust to cause it to accelerate at 9.8 m/s^2. You are standing on a scale on the floor that reads the same weight that it does when used on the surface of the Earth.

Question 1: Does anyone have any qualms whatsoever about calling what you are experiencing a gravitational force that is every bit as "real" as any gravitational force can possibly be?

Question 2: Does anyone have any qualms whatsoever about saying that you find there to be a gravitational field of 9.8 N/kg directed toward the floor of the rocket?

John Mallinckrodt
Cal Poly Pomona