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The Slowest fall / simple aerodynamics

  1. Dec 29, 2011 #1
    1. The problem statement, all variables and given/known data

    The problem is to construct a model out of ordinary materials such as paper, blotting paper, foil, tights and so on, that is supposed to fall along about 3 metre long runner with as longest time as possible. (with the inspirations like maple seed)


    3. The attempt at a solution

    I was thinking about a paper towel parachute with holes in it that would keep the air circulation not to swing around... Or the propeller model with tube (has to have a hole for attaching it to the runner) and 3 blades like in helicopter...

    What is the best way to use air resistance in this case?
    I'm sorry for such dumb questions =_=,
    thank you
     
  2. jcsd
  3. Dec 29, 2011 #2
    "to fall along about 3 metre long runner with as longest time as possible."

    Please elaborate...
     
  4. Dec 29, 2011 #3
    There is a line attached to a celling and there should be a hole in the model so that it goes along a restricted space (to measure time equally)
     
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