A person of mass m is standing on the surface of the Earth, of mass ME. What is the acceleration that the Earth experiences due to the person's gravitational pull? O GME/d², with d being the average radius of the Earth. Gm/d², with d being the distance between the person's center of mass and the center of the Earth. Gme/d², with d being the distance between the person's center of mass and the center of the Earth. Gm/d², with d being the average radius of the Earth.

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Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!