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Rolling Down Rocky Top

D1 Team 3. Blake Hollis Jordan Livesay Kellen Catani Sean Yu. Rolling Down Rocky Top. Basics. What is it? Rube Goldberg device One input force = one task Inefficient and complicated. Bill of Materials. Concepts used Torque/ Rotational Motion Spring Force Potential/Kinetic Energy

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Rolling Down Rocky Top

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  1. D1 Team 3 Blake Hollis Jordan Livesay Kellen Catani Sean Yu Rolling Down Rocky Top

  2. Basics • What is it? • Rube Goldberg device • One input force = one task • Inefficient and complicated • Bill of Materials • Concepts used • Torque/ Rotational Motion • Spring Force • Potential/Kinetic Energy • Translational Energy

  3. Building Process • Tools used • Circular saw • Power Drill • Jigsaw • Hammer/Nails • Tape Measurer

  4. Process • Golf ball lies on top of a board 0.2286 meters • Trim piece connects to the top and to the bottom with another board at a height of 0.0635m. • The golf ball will roll to the bottom of the trim piece with a velocity of 2.18m/sec. and strike a shaft (0.0635m) • Shaft speed = 34.3 rad/sec • Second ball will hit a block • Block speed = 1.01m/s

  5. Process (Cont.) • Block falls over and starts dominoes • Dominoes speed = .54 m/s • Dominoes trigger mousetrap • Mousetrap releases paperclip which allows banner to unfurl.

  6. Calculations / Issues • Issues • Absence of friction or losses of energy • Input force varies each time as well as direction of force • Ramps not sturdy • Nailed ramp • Paperclip did not release • Changed angle of pull

  7. Summary • After issues were solved, device worked fairly efficiently • Fun creative use of common objects • Some issues could not be resolved but we found ways around them

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