A catapult is a device used to throw or hurl a projectile a great distance without the aid of explosive devices particularly various types of ancient and medieval siege engines. Although the catapult has been used since ancient times, it has proven to be one of the most effective mechanisms during warfare.
For a physics project me and some friends of my class were working in a catapult. First of all we should make one catapult.
Then we need to throw a ball and mark where and when it touch de floor, so we measured the time and the centimeters the ball advanced.