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The Danger Zone

This project, led by Jessie “Juliet” Moore and her team, explores the principles of conservation of energy and momentum through experiments involving projectile motion and a rat trap mechanism. We demonstrate energy conservation with kinetic and potential energies, utilizing equations to calculate velocity and trajectory. Additionally, momentum conservation is examined with marbles and a rat trap, highlighting results like velocity after collisions. Key findings include the neglect of friction and the coefficient of restitution, along with accuracy measurements of the marble's impact.

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The Danger Zone

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  1. The Danger Zone April 23, 2008 EF 151 Final Group Project

  2. Jessie “Juliet” Moore Our Team&Our Project Evan “Echo” Harb Caleb “Charlie” Williams Reuben “Romeo” Robertson

  3. Conservation of Energy KE + PE + Win = KEf + PEf+ Eloss PE = KEf mgh = 1/2mv2 (.008)(9.81)(.085) = 1/2(.008)v2 V = 1.29 m/s

  4. Projectile Motion y-yo = (x-xo)tanθ – (g/(2Vo2)(1+tan2θ)(x-xo)2 θ = 5.47

  5. Conservation of Momentum M1 = Marble M2 = Rat Trap M1V1 + M2V2 = M1fV1f + M2fV2f M1V1 = M1fV1f V1 = V1f V1f = -1.28 m/s

  6. Conclusion Friction was neglected on ramp and in funnel Coefficient of Restitution is ignored Marble hits the trap with 80% accuracy

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