Subject:
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Tunnel through the center of the Earth (was Re: John Leo's opinion of "The West Wing")
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Newsgroups:
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lugnet.off-topic.debate
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Date:
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Thu, 3 Oct 2002 18:47:46 GMT
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Viewed:
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1000 times
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Dan Boger wrote:
> > And reading Frank's example about the onion and the layers, the effective
> > mass for attracting an object is lessened as we fall down the hole--I think
> > this means that our 'terminal velocity' speed would lessen as we get closer
> > to the center, so does this, in turn, mean that the closer we get to the
> > center of the planet, the slower we would fall--that we wouldn't have to
> > get
> > past the center before we start slowing down, due to being pulled back to
> > the center?
>
> yup - you won't slow down as you near the center, you'll just accelerate more
> slowly. To slow down a force need to be applied to your falling (flailing?)
> body.
Which of course happens as soon as you pass the center...
Though the friction of rolling down the side of the tunnel might be
enough to stop you at the center.
Frank
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Message is in Reply To:
 | | Re: John Leo's opinion of "The West Wing"
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| Quoting David Koudys <dkoudys@redeemer.on.ca>: (...) I think it'll feel like you're rolling down a steep hill, constantly crashing against the eastern wall. (...) uh, why? gravity is pulling straight down, your momentum is at 90 degs to the force - (...) (22 years ago, 3-Oct-02, to lugnet.off-topic.debate)
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