Ballista Kit

Build a ballista, a siege engine once used by the Greeks and Romans, to teach kinematics and projectile motion. Study conservation of energy, Newton’s third law, and parabolic trajectories using the 4 separate angular settings of the ballista. The ballista uses torsion spring bundles and lever arms and can launch Ping-Pong balls more than 30 ft. The 2 lever arms pull on the pouch, accelerating the Ping-Pong ball away from the ballista.

Description

Build a ballista, a siege engine once used by the Greeks and Romans, to teach kinematics and projectile motion. Study conservation of energy, Newton’s third law, and parabolic trajectories using the 4 separate angular settings of the ballista. The ballista uses torsion spring bundles and lever arms and can launch Ping-Pong balls more than 30 ft. The 2 lever arms pull on the pouch, accelerating the Ping-Pong ball away from the ballista.

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