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The marble slab

The marble slab. Bryan Schow Brandon Johnson Ben Burns. Design. Our design has a small marble “snake” back and forth along a wooden track, slightly decreasing the angle downward at each turn to create its velocity.

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The marble slab

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  1. The marble slab Bryan Schow Brandon Johnson Ben Burns

  2. Design Our design has a small marble “snake” back and forth along a wooden track, slightly decreasing the angle downward at each turn to create its velocity. The materials used were cost effective and easily available. Two trips to Lowe’s were necessary. Cost – roughly $35.00 (including destroyed materials) Time to construct: first- 4 hours; second - 7 hours

  3. Energy • We calculated the ball’s energy along the track using Conservation of Energy equation. • mghinitial + ½ mv2initial= mghfinal + ½ mv2final • Ball’s energy changes from gravitational potential to kinetic, neglecting friction.

  4. Construction Issues • One main issue in the beginning was that our materials were not doing the job we originally thought they would. • Another huge roadblock was that overnight on Monday, November 23rd, our device was destroyed. No hard feelings though. • Difficulty consistently cutting grooves with saw. • Hot glue is HOT! Who would’ve thought?

  5. Conclusions • We overcame several obstacles and learned how to work as a team to accomplish the task. • As a team, we spent several hours coming up with sketches, ideas, and materials, and then using these to achieve our goal. • Applied principles and concepts learned this semester. • Overall, we worked together, applied EF 151 concepts, and hopefully, fulfilled all requirements for this project.

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