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Moon Experiment (Posted on 2004-11-22) Difficulty: 5 of 5
Assume the moon is a perfect sphere and a straight tunnel has been drilled through the center. How long would it take a 1kg ball dropped from one end of the tunnel to reach the center? Ignore all resistances.

If a second 1kg ball is dropped 10 seconds after the first one, when and where in the tunnel would they first meet?

Idealized Moon Stats:
- Diameter: 3480 kilometers
- Mass: 7.38x10^22 kilograms (uniform density)

See The Solution Submitted by Brian Smith    
Rating: 2.4000 (5 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
Some Thoughts ... | Comment 18 of 22 |
Well, if you consider it in the fashion that gravity is a resistance, wouldn't it be feasible to say that the balls will stay where they are and meet up ten seconds when the second one is set? That's my deduction at least...
  Posted by Wayne on 2005-03-23 02:19:55
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