Gravity is acted upon the catapult the whole entire time. Frictional force is where our pivotal points are located and can be affected if rust occurs to add more friction. To modify the points to make the rod have less friction in the bearings we can add grease to make it more slick. The smoother the better so there is less traction between the two. We added WD-40 as our substance to make that smooth surface. It will give it more of the fling needed without anything to slow it down much so our balloon can fly as far as it can. While this happens gravity is being acted upon the balloon so adding more weight to our counterweight will give the balloon more of a thrust upward so it can stay in the air as long and cover more distance.
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