1. The Team Logan Colbert – Civil Engineering Eric Solmonson – Electrical Engineering Travis Ricker – Civil Engineering Adam Hurlbut – Aerospace Engineering

2. Overview of the device

3. Design/Construction Issues Had to cut and assemble device in the Arts and Architecture building. Issues with spray paint. Making sure the “car” cuts the string that sets off the device. Having the see-saw balanced

4. Energy Conversions GpE (car) KE (car) PE (spring) KE (spring) GpE (rock) KE (rock) mgh + 1/2mv^2 + 1/2kx^2 + Win = mgh + 1/2mv2 + 1/2kx^s + Eloss

5. Conclusions The team spent several hours cutting and constructing the device at the Arts and Architecture building. We believe that the project was a success and everyone had lots of fun. Without Patrick Dobbs (greatest EF151 T.A. ever), we would not be able to design such “Grade A Material”.