1. The Procrastic Creation
Garret keith, Blaise Decoates, Eric Fowler, James Cortese

2. Design Projectile – marble
Plastic pieces that don’t really fit together, held with duct tape and hot glue
Some pieces bought at Wal-Mart for ~$8, other pieces found, duct tape and hot glue estimated cost ~$5
Works in around 14.5 seconds
Lots of spirals and drops

3. Energy
Gravitational potential energy at the top, all converted to kinetic energy at the bottom
Mgh = 1/2mv^2
Negligible energy loss due to friction

4. Construction/Design Issues
Getting the time to be ~15 seconds was an issue: we had to change the height repeatedly
Hot glue is not very strong
Deciding what we were going to build took the most time

5. Conclusions
Adjusting heights increases/decreases energy from gravitational potential energy to kinetic energy, affecting time it took to go down the coaster
Getting together and deciding what to do is hard
Overall, making the coaster cost effective and simple was the goal
It runs in ~14.5 seconds