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IMO, at nationals last year, Bungee Drop was run worse than at the MIT invitational this year. It was also run worse than an invitational that I attended at my school. The event supervisor was not to particular in their measurements, to say the least. It would be fantastic if the guy who ran it at ...

IMO, at nationals last year, Bungee Drop was run worse than at the MIT invitational this year. It was also run worse than an invitational that I attended at my school. The event supervisor was not to particular in their measurements, to say the least. It would be fantastic if the guy who ran it at ...

Note you are assuming there is a non-elastic portion of the cord. I've seen many devices that are completely elastic. In addition, there are many advantages to having an all-elastic cord. 1-It wears out slower than cords with a non-elastic portion, as it slows it down over a longer period of time a...

Note: i uploaded my bungee equations to the wiki, so feel free to use them. One issue that many bungee drop competitors face is the issue of varying elasticity the more you test it. More specifically, the more you test it, the less elastic your bungee will become. One great way to account for this i...

Well, the value of k changes depending on the length of your cord, even with the same material. You'd need a different formula to figure out a constant that also factors in a changing length (hint hint, one exists). If you are using rubber bands: 1. Make sure that your cord can meet the test for el...

At the MIT invitationals tournament january 24, the efficiencies went as follows (In order of rank):

Solon High School 2390
Seven Lakes High School Team 1 2038
Seven Lakes High School Team 2 1580
Troy High School 1346
Bayard Rustin High School 1244
Stuyvesant High School 1181

It's so frustrating how the rules dont specify a minimum ceiling height. My partner and i went for the high power, high angles. Needless to say we went to invitationals and hit the ceiling. Now we need to do a total overhaul by using adjustable drop height rather than adjustable angle.

Also, people should be careful about how many times they test their bungee. The more you test, the less elastic the cord becomes and it skews your earlier data /equation. Ideally you would have few tests and use your stastical knowledge to masterfully interpolate, or you would have one perfect test ...

so I should find the spring constant (k) before hand with trials and such and then during the competition plug in the F value (which I could calculate from the mass) into the equation F=kx to find x, which I could use to determine the height? Also is it okay that I made my "bungee" out of...

Does it require air pressure? In the event description, it says "the gravitational energy must be converted to air pressure or movement,". Does that mean that we don't have to worry about creating a pneumatic cylinder, and can just use the falling mass as launch energy? I think that would ...