Forums: Skydiving: Gear and Rigging: Re: [JerryBaumchen] recommended specs on reserve exit weight, do you go over max?: Edit Log

phoenixlpr  (D 3049)

Jul 11, 2006, 10:53 PM

Views: 2934
 Re: [JerryBaumchen] recommended specs on reserve exit weight, do you go over max?
About 40 yrs or so ago when I was in Physics it was
F=MA

F= force
M=mass
A=acceleration

Drag (physics)

F=m * a is one side of the equation.

Here is the other side:

F = c * A * v^2

where A is the area of the canopy
V is the speed
c is a coefficient

m * a = c * A * v ^ 2

As you see lager acceleration/deceleration belongs to bigger mass,because forces in this system does not depend on the mass of the system.

c is deppending on the shape, air desity....
A the area of the canopy is constant
V is the deployment speed

(This post was edited by phoenixlpr on Jul 11, 2006, 11:00 PM)

 Edit Log: Post edited by phoenixlpr () on Jul 11, 2006, 11:00 PM

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