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Unread 24-10-2005, 23:50
sciguy125 sciguy125 is offline
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Re: Egg drop Contest- Help Please!!

Quote:
Originally Posted by Tom Bottiglieri
You mean negative acceleration, right?
No, the contest is called egg decelleration. The flyer said something about an egg being able to fall 2 miles as long as it doesn't decelerate too suddenly.

Quote:
Originally Posted by greencactus3
also keep in mind the faster the Vx the less the impact force
That would only work if the system (like an airplane, as you mentioned) was such that >Vx resulted in <Vy. If we were to follow a particle, Vx and Vy would be completely independent of each other. Assuming no spin, Vx creates a rubbing force on the object, while Vy causes a crushing force. Well, the acceleration does, but it'll be proportional to V. I guess that, in general, <Vy will result in <dVy/dt.

In something like a parachute, I still don't think that Vx matters. How ever your system is designed, in order to decrease the impact force, dVy/dt has to be minimized. If your system is such that Vy is inversely proportional to Vx, then yes, >Vx would create <Vy and thus <dVy/dt.
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