Andrew Eder Eddie Seabright Chris DeLuca Joe Edwards Used a .5 x .5 meter cardboard base Total costs were $17.50 Toy car rolls down ramp and collides with another car The second car then goes off a ramp and hits a ruler balanced with a weight on it The ruler and car trigger the mouse trap The mouse trap pulls a string through pulleys raising a banner Conservation of Energy Conservation of Momentum Projectile Motion Center of Mass Difficulty finding actual center of mass for ruler Our original idea of a loop did not work Our original idea of a cup and water would not work properly We had difficulty triggering other devices The collision of the cars lost a lot of energy The collision of the car lost to much energy The size restrictions of the device hurt the design of the ramp Many of the original ideas did not work The device could have been much better with a higher budget