Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Ping pong ball cannon

  1. Oct 8, 2007 #1
    What's the best way to build a cannon to shoot an object the size of a ping pong ball when I have these limited materials. I'm really stuck on the best way to make it. Also, it has to have a trigger that is set off by one finger only, and it can't be that you just pull a rubber band back and let go.

    Max 2 rubber bands
    Popsicle sticks
    Tape & Glue
  2. jcsd
  3. Oct 9, 2007 #2


    User Avatar
    Science Advisor
    Homework Helper

    Presumably you have to use the rubber bands to provide the energy.
    Can you just pull back the bands onto some sort of trigger and then pull the trigger to release them - look up early crossbows in wiki, just about all possible simple trigger latches have been tried.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?

Similar Discussions: Ping pong ball cannon