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- Thread starter MIKART2
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The general differential equation for motion with airdrag is (assuming "high" velocity and fluid at rest):

[tex]

m\frac{d \vec v}{d t}=\vec F-\gamma v^2

[/tex]

Where F is your "usual" forces, gravity etc and [tex]\gamma[/tex] is a factor that depends on the geometry of your body (shape an cross-sectional area) and the density of the fluid:

[tex]

\gamma=\frac{\rho_{fl}A C_d}{2}

[/tex]

You can find more on this term http://en.wikipedia.org/wiki/Drag_equation" [Broken]

The solution to this equation is that [tex]v\sim\tanh t[/tex] which converges to a constant value as t goes to infinity i. e. there is a terminal velocity.

[tex]

m\frac{d \vec v}{d t}=\vec F-\gamma v^2

[/tex]

Where F is your "usual" forces, gravity etc and [tex]\gamma[/tex] is a factor that depends on the geometry of your body (shape an cross-sectional area) and the density of the fluid:

[tex]

\gamma=\frac{\rho_{fl}A C_d}{2}

[/tex]

You can find more on this term http://en.wikipedia.org/wiki/Drag_equation" [Broken]

The solution to this equation is that [tex]v\sim\tanh t[/tex] which converges to a constant value as t goes to infinity i. e. there is a terminal velocity.

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