Size of a parachute needed to slow down to survivable speeds? - parachute buckle
We use an umbrella theory, for example. Under the assumption that the shield could hold the buckle and ... What would be needed to clear the terminal velocity of, say, to reach 40 km / h when these applications as a threshold, a risk for survival?
..... How about 30 yards directly (as far a survival rate of 50/50 in the normal soil) have, with the same roof. How to stop. Basically, I'm curious to see how the surface is given a weight of a drag effect, and therefore the speed in the case. Any physics gurus out there who want to give him a chance?
Friday, January 1, 2010
Parachute Buckle Size Of A Parachute Needed To Slow Down To Survivable Speeds?
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1 comments:
Good question! That's what I found:
Apparently, the general rule that the bridge will support the hanging pound square foot canopy. So for the theoretical 130-pound (I), for example, you need a 130-square-foot roof. Drinkers, all with the computer, click here
http://www.aeroconsystems.com/tips/desce ...
and some units conversion, I discovered that it was necessary to cover a 157 square meters with a 130-pound object at 40 km / h, stopping well, a little disagreement, but many variables, too (see equation below).
Not sure to tell the second part of your question, unfortunately, just that we can assume that the equation is the rate of fall, as follows:
Rate = square root ((CD * 0.5 * p) / D1.728)
where units are as follows. Unfortunately, this is what I am without my physics book before me. I hope someone here knows and enlighten us both.
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