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Water-Logged: A Team Project on Projectile Motion and Kinetics

Water-Logged is the result of a collaborative effort by Team D2-8, which includes Nick Dement, Eric White, and Jake Shelton. The project focuses on designing and constructing a device that demonstrates principles of physics such as projectile motion and rotational mechanics using materials like PVC pipe, wood, and other components. The team faced challenges in stability and precision during construction. After numerous trials and calculations, they successfully created a functioning device, achieving repeatability of its operation while acknowledging its complexity and inefficiencies.

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Water-Logged: A Team Project on Projectile Motion and Kinetics

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  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+½Iω² 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+½Iω² 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.

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