1. Fall 2008 EF 151 final team Project
Will McAlexander
Jimmy Erickson
Chris Epley

2. The Team
Will Jimmy Chris

3. The Setup
The box that was the frame for the system is approximately a cube with each side being ~16.5 in (.42 m). The plastic tube that makes up most of the track is approximately 20 feet long.

4. Internal Energy
The starting position of the ball is roughly .5 meters Therefore, by the equation for gravitational potential energy : PEgrav = mgh m=~.25 gram g= 9.81 m/s^2 h =~.5 meters So: PEgrav = .25 x 9.81 x .5 = 1.23 Joules

5. Design/Construction Problems
The biggest problem by far was crinkles in the tubing
Next was an unstable box
We rebuilt the box from scratch since the original one was so unstable
The conflicting times that the team members were available was another big problem.

6. Conclusion
While everything looked easy on paper, the actual building process was impeded by a variety of things.
Personal Skill
Quality/Availability of Materials, Tools, and Time
In the end, even the most simplistic of designs turn out to have a lot of hidden errors and problems.