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my catapult prezintation

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Brady Howorko

on 30 April 2010

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Transcript of my catapult prezintation

how catapults work catapults hurdle objects thru the air it comes from the greek words "kata" "pultos" my catapult is a class 3 lever catapults are a winched down bucket that fires things out the bucket other examples of class 3 levers are hockey sticks catapults use energy to fire catapults are a simple machine other examples of catapults are trebuches and crossbows
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