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)
What I remember about this problem from school is that it doesn't
matter if the hole goes through the center of the moon or not.
Given frictionless sliding, you could drill a hole between any two
points on the surface and the travel time would be the same.