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Catapult

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by

Amber Lorenz

on 28 April 2010

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Transcript of Catapult

How my catapult works. What we used: Bungee Cord Elastic bands Wood Nails or screws Basket The Machanical Advantage I take the effort arm and load arm. And i divide the effort arm by the load arm. MA= Effort arm
Load arm. And i got the mechanical advantage of _ How our catapult works: We apply pressure to the end of our catapult, Which creates tension in the bungee cord. Then when we realease the pressure we are exerting on the catapult, the tension in the bungee cord is released. That causes the arm of the catapult to fling back. therefore, throwing whatever is in the basket at the time. BY Amber Lorenz.
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