MadSci Network: Physics |
I believe that the water would flow into the tunnel with a changing acceleration due to gravity based on the earth's mass "above" it and the amount of the earth's mass "below" it, until it reached the middle of the earth, at which time it would slow down because more earth's mass would be pulling on the water from the side which it just left. As the water slowed down, I would predict that the water would oscillate back and forth in the tunnel, due to the earth's mass pulling away from the direction of motion of the water, similar to the behavior of a pendulum when its oscillation starts away from the center of its cycle.
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