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Homework Help: Marble loop roller coaster launcher!

  1. Dec 13, 2011 #1
    Help me here.

    I need to figure out how to launch a marble so it navigates a vertical loop, then follows projectile motion at the end of the loop

    The design must use elastic potential energy to do this and must consistantly launch it consistantly to a specifyied location.

    I can't figure out how to launch the marble..

    Any ideas other than a compression spring??
     

    Attached Files:

  2. jcsd
  3. Dec 14, 2011 #2
    Seems like you have a choice between spring and elastic band.
     
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