The Replacement Kicker Rube-Goldberg Device Dan Grapski, James Knight Nick Brubaker

Overview Our project consisted of shooting a marble up a foam insulator pipe, then having it roll down a sequence of “zig-zags” to knock over a series of dominos in order to finally have our mouse-trap-launcher punt a football.

Overview

List of Materials Foam Pipe Insulator Mouse Trap Hot Glue Small Bungee Cord Plywood base Nails TOTAL COST: $14.10 Hot Glue Marble Lots of Duct Tape Dowel Rods Scrap Wood

Energy Conversions 1/2kx^2  1/2mv^2 1/2mv^2  mgh

Momentum (for dominos): mgh  1/2mv^2 Momentum (for dominos): mv1  mv2  mv3 …

Finally, 1/2kx^2  1/2mv^2 to successfully launch the projectile.

Conclusions After completing our project, we decided that simple - looking devices still require a large amount of work and brainstorming. Our device does in fact launch a projectile intended with few inconsistencies. One improvement would be to calculate an angle of launch and attempt to shoot our projectile a certain distance.