1. Water-Logged Designed and constructed by: Nick Dement, Eric White, and Jake Shelton

2. Team Introduction Team D2-8 Nick Dement Jake Shelton Eric White

3. Device Design Overview Materials: – Pvc Pipe – Wooden Boards – Dowel Rods – Cups – String – Rubber Bands – Swinging Weight – Nails/Screws – Duct Tape

4. Device Operation Projectile Motion- Marble & Ramp C.O.E. (Rotational)- Marble C.O. ρ. (Linear)- Collisions C.O. ρ. (Angular)- Weight Center of Mass- Balances

5. Device Operation Cont. Calculations Marble Speed at Launch: mgh=½mv²+½ I ω² h=.416 ft ω=(v/r) I = ⅖ m(r)² g=32.2 ft⁄s² m(32.2)(.416)= ½mv²+½(⅖m(r)²)(v²⁄r²) (32.2)(.416)= ½v²+½(⅖(r)²)(v²⁄r²) (32.2)(.416)= ½v²+½(⅖)v² V=4.378 ft⁄s Weight Angular Speed at Impact: mgh=½mv²+½ I ω² h=.5417 ft I =mr² v=ωr r=.7917 ft m(32.2)(.5417)=½m(ωr)²+½(m(r)²) ω² (32.2)(.5417)= ½(ωr)²+½(r)²ω² (32.2)(.5417)= ½(ω)²(.7917)² +½(.7917)²ω² ω=5.275 rad⁄s

6. Device/Construction Issues Problems with: – Maintaining stability – Making device repeatable – Getting precisely sized objects to operate machine adequately “If at first you don’t succeed, try, try again.”- Thomas Palmer

7. Conclusions Eventually, our team created a successful device. The device is repeatable for completing its job, but inefficient and complicated in doing so. Through trial and error, as well as some calculations, our team produced a working machine and completed the project.