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?rjan Flatseth wrote:The drag race has been done. The Cloth is some of the slowest falling material.
Surely there is no air nor air-resistance in AR. It is just different falling speeds plotted in to make it a bit like something like airresistance..
I have never looked closely but I think every falling material reach a top speed very soon - they dont accelerate for ever - perhaps this is ment to give a "feeling" of air resistance to? I think author of AR has kept it very simple - wisely - cause real air-r. simulation would have smoked my CPU
Gravity wrote:Air resistance is proportional to velocity, so the correct way to check it is not to have a "drag" race, it could very well just be that different materials have different accelerations due to gravity, but to check to see if acceleration slows down. That is, does the armadillo gain as much speed in the second half of his fall as he does in the first half? If so, then yes, there is an air resistance. If no, then there is no air resistance.
I don't think there is air resistance, I think certain materials just have different accelerations.
Gravity wrote:?rjan Flatseth wrote:The drag race has been done. The Cloth is some of the slowest falling material.
Surely there is no air nor air-resistance in AR. It is just different falling speeds plotted in to make it a bit like something like airresistance..
I have never looked closely but I think every falling material reach a top speed very soon - they dont accelerate for ever - perhaps this is ment to give a "feeling" of air resistance to? I think author of AR has kept it very simple - wisely - cause real air-r. simulation would have smoked my CPU
Air resistance isn't that complicated, especially given in two-dimensions, I think it simplifies down to an exponential function that you can generalize over all the objects (since different object have different accelerations), and you can even factor in area as well.
NeXFerret wrote:WEIGHT DOES NOT AFFECT RATE OF FALL!
Drop an aluminium and lead cannonball in the same instant. They should hit the ground at exactly the same time if they are exactly the same shape.
-m g = m a
Fd - m g = m a
Fd = 1/2 * density * drag-coefficient * Ac * vel^2
a = 1/m * (1/2*density*drag-coefficient *Ac * vel^2) - g
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