To design and build an effective projectile launcher that obeys Hooke's law, quantitatively theorize the distance traveled by a spherical projectile and evaluate those calculations against collected experimental data.
After a projectile launcher is home-built and data for the used projectile is collected, the theoretical distance traveled will be calculated using concepts such as Hooke's law, conservation of energy and projectile motion. The projectile launcher will then be tested and data for the actual distance traveled will be measured and compared and evaluated against the theoretical calculations using methods such as percentage error. Ideally, a small spherical mass of around 65g is to be used and travel a distance of around 10m. A basic tape measure or meter stick can be used to measure distance traveled.