Today, I saw one of my old friends that was originally from Churchill and IB, and is now on his second year of university. They had to the the same, or sort of the same experiment, when he was grade 9. He said every one who used a trebuchet totally failed, the thing they were launching barely went a few meters. In order for a trebuchet to work, they had to have something heavy to launch, and when the thing being launched is heavy, it's easier for gravity to pull down on it and it'll fall too early. So I guess now, we've decided that we're doing catapults, which is great because now that we know what we're going to use, it's easier to find information on it!!
-Jessica
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