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How Did A Catapult Build Springy?

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In this project, David and Goliath, assigned by Mr. Kumz, a catapult was built, Springy.. In this experiment three different variables were tested; angle of launch, stretch length, and the skittle position. The angle of the launch had three measurements: zero and forty-five degrees. The stretch length measurement were 2, 3, 4, 5, 6, 7, and 8 centimeters, while the skittle position was flat and on its side. Springy’s most effective launch was at a zero degree and with a stretch length of five centimeters. Both side and flat side were effectively when launch at that degree and length. The side landed once out of the three tries in the small cup, while the flat side landed in the large bowl. Both landed very close the other two tries. However,

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