Terminal Velocity

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acerbus80

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Terminal Velocity
« on: March 09, 2007, 10:45:44 PM »
From what I understand, terminal velocity is the maximum speed that an object reaches when falling towards the earth.  It accelerates constantly until it reaches X speed, then accelerates no more.

If indeed the earth is flat, and accerlerating upwards at a constant speed, why is terminal velocity experienced?  If the earth is accelerating at a constant and increasing speed, wouldn't the "falling" object continue accelerating until it's collision with earth?

Re: Terminal Velocity
« Reply #1 on: March 09, 2007, 10:48:20 PM »
From what I understand, terminal velocity is the maximum speed that an object reaches when falling towards the earth.  It accelerates constantly until it reaches X speed, then accelerates no more.

If indeed the earth is flat, and accerlerating upwards at a constant speed, why is terminal velocity experienced?  If the earth is accelerating at a constant and increasing speed, wouldn't the "falling" object continue accelerating until it's collision with earth?

Same as in RE: air resistance.
Gravitation=Acceleration yada yada yada
Equivalence Principle et cetera
http://en.wikipedia.org/wiki/Equivalence_principle

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Dioptimus Drime

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Re: Terminal Velocity
« Reply #2 on: March 10, 2007, 11:09:48 AM »
Air resistance still applies because the Earth is pushing air up along with it.

~D-Draw

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kinereoj

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Re: Terminal Velocity
« Reply #3 on: March 10, 2007, 09:21:18 PM »
Why is there an escape velocity? Why is it possible for a projectile to escape earth's gravity? Oh . . . I know, because the gravitational field is NOT UNIFORM! FE theory cannot explain that!! Therefore, it is crap!