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Physics of Surfing

Physics of Surfing. Experiment 17 Yvonne, Erin, & James?. Experiment 17. May 21 st , 2008 at SIO Experiment 17a: Accelerometer in a moving elevator Experiment 17b: Accelerometer on a weighted bungee cord (spring). Participants. Participants. Professor David Sandwell Mac James Yvonne

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Physics of Surfing

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  1. Physics of Surfing Experiment 17 Yvonne, Erin, &James?

  2. Experiment 17 • May 21st, 2008 at SIO • Experiment 17a: Accelerometer in a moving elevator • Experiment 17b: Accelerometer on a weighted bungee cord (spring)

  3. Participants

  4. Participants • Professor David Sandwell • Mac • James • Yvonne • Erin…kinda… • Powerpoint: • Erin • Yvonne

  5. Accelerometer • Collection time of 4 minutes • Collected data in X, Y, and Z components • Streaming Data • Data recorded in sensor package and downloaded to computer

  6. Setup • Elevator Experiment: Accelerometer placed on floor of elevator to record data • Weight Experiment: Accelerometer taped to weights

  7. Elevator Data

  8. During the Experiment…

  9. About to Release the Weight

  10. Bungee Experiment • First attempt: failed

  11. So, like real scientists, we tried again • Second attempt: success

  12. Results • Elevator experiment: • Velocity of elevator around 0.5m/s, -0.5m/s when traveling in downward direction. • Graph data incomplete because memory card was full, but same conclusion can be reached • Acceleration constant during travel

  13. Results (cont) • Bungee (1st attempt): Weight hit the rail, so data was obscured • Bungee (2nd Attempt): When released, the weight traveled with perfect oscillating motion. Distance weight traveled was reduced to zero after enough time • Video: ftp://topex.ucsd.edu/pub/class/ps/EXP17/video/EXP17_video.mov

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