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Unread 24-10-2005, 23:31
sanddrag sanddrag is offline
On to my 16th year in FRC
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Re: Egg drop Contest- Help Please!!

Quote:
Originally Posted by greencactus3
well also keep in mind the faster the Vx the less the impact force.
I don't have the time at the moment to really think about this but isn't that not true? The Y (vertical) component of the velocity is going to do whatever it is going to do regardless of what the x component is (if you disregard air friction). So, by putting in an x component, aren't you just adding kinetic energy to the system increasing the impact force?

I see what you are saying in that a plane has a smoother landing than a helicopter that drops out of the sky but I think a rock that you throw off horizontally hits just as hard, if not harder than a rock you drop straight down. Also, I think that if I drop two rocks at the same time, one with a parachute and one with wings, and they hit the ground at the same time, then there is no advantage to having the wings. However, if by having wings prolongs the time to decend (decreases the vertical velocity) then it would be advantageous.

I think what you mean is you want some lift or air friction or something to minimize the vertical component of the velocity and maybe as an effect of doing that you will increase the horizontal component. But back to my example of throwing a rock vs dropping a rock, they both hit with the same downward speed, and the thrown one hits with greater impact actually since it has more energy. So, I'm thinking you knew what you meant but didn't say it in quite the right way.

Of course, I could be totally wrong. I don't know. I don't even eat eggs hardly at all.
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