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Conservation of Momentum LAB 8

Conservation of Momentum LAB 8. Herrick Ong Jordan Henry Ravi Gogna Sunny Kalra April 21, 2009 Las Positas College – Livermore, CA. Abstract. Verify Conservation of Momentum Laws Use Kinematic Equations with Conservation laws to predict Where ball will land. Run experiment 10 times

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Conservation of Momentum LAB 8

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  1. Conservation of Momentum LAB 8 Herrick Ong Jordan Henry Ravi Gogna Sunny Kalra April 21, 2009 Las Positas College – Livermore, CA

  2. Abstract • Verify Conservation of Momentum Laws • Use Kinematic Equations with Conservation laws to predict Where ball will land. • Run experiment 10 times • Found Conservation laws to be correct

  3. Introduction • Momentum is defined as velocity times the mass of an object. • Momentum laws allow is to solve certain class of problems, Collisions.

  4. Theory

  5. Finding Initial Velocity Using Conservation of Energy Potential Energy Kinetic Energy

  6. Finding Initial Velocity Using Conservation of Energy Ball Rotating Moment of Inertia Angular Velocity

  7. Conservation of Momentum Initial Momentum = Final Momentum Final Momentum Has Two Masses Vector Decomposition

  8. Experiment • Apparatus Height of ramp

  9. Experiment • Set ramp • Measure height • Make sure the collision takes place at approximately 45 degrees • Run trial. • Place paper on floor, take measurements • Redo with tape.

  10. Origin

  11. Results • To insert your company logo on this slide • From the Insert Menu • Select “Picture” • Locate your logo file • Click OK • To resize the logo • Click anywhere inside the logo. The boxes that appear outside the logo are known as “resize handles.” • Use these to resize the object. • If you hold down the shift key before using the resize handles, you will maintain the proportions of the object you wish to resize.

  12. Measured Quantities

  13. Measured Quantities Steel on Glass Steel on Glass w/ Tape

  14. Analysis - Elastic

  15. Analysis - Inelastic

  16. Analysis Note: Error bounds too large (larger than expected values), possible low accuracy of experiment. Error larger in inelastic collision. Momentum in ‘x’ conserved in both cases Momentum in ‘y’ 27% less than expected However, only 4% difference between observed total ‘y’ momentum in both experiments: consistent results.

  17. Discussion Momentum was conserved in the elastic and inelastic collisions within error bounds. Experiment should be reevaluated to decrease size of error bounds Expected momentum in ‘y’ should be obtained experimentally.

  18. For both the elastic and inelastic collisions: Momentum conserved in x and y direction. Since our error is so high a better result can be obtained by reworking the experiment and/or reworking the calculations. Conclusion

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