Thread: Sink rate
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Hootenanny
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Feb17-07, 08:22 AM
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Quote Quote by kasse View Post
If I drop a stone on the surface of the Pacific Ocean, over a very deep pit, will it then keep a constant speed towards the bottom?
It will initally and then reach a terminal velocity at which it will remain until it reaches the bottom of the pit. Assuming of course the depth of the pit is less than the thickness of oceanic crust (~5-10km)
Quote Quote by kasse View Post
I've heard that some places it will take years before the stone gets to the bottom. Is this true? Which physical laws can I use to prove/disprove this?
You should start by looking up Fluid Friction and in particular Viscous resistance (http://hyperphysics.phy-astr.gsu.edu...airfri.html#c3)