Overall, I learned a lot about catapults in this project. With different amounts of elasticity, the distance of the projectile's launch was affected. Other aspects that would affect the distance are the angle of release, the weight of the arm, the weight of the projectile, and the amount of friction created when turning the arm. The bungee cords alone have a lot of physics in them. The fact that the overall elasticity lessened with each cord removed slowed down the arm's velocity forward, and made for a less spectacular launch. Each bungee cord added less distance to the projectile's launch, but it was still a significant amount. Each bungee cord added added around 10 cm less than the last one (excluding the first and second one). This is because the cords provide more elasticity, but since they are all in the same spot, the will have less tension since they are pushed up by the other cords. If I evenly spaced out the cords so that none of them are touching each other, It might get rid of the loss of distance added. This project showed me that the cords add distance to the projectile's distance, since it creates a higher velocity for the arm to move at, which will send the ball at that higher velocity.