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Elastic (E), Inelastic (1). or Perfectly Inelastic (P)? (There can be more than one.) 1. P Two objects combine together. 2. IP Momentum is conserved. 7. With Velcro. 8. Epsefore - Ep,fer and m,her= m,-2 3. IP Epsefre =Epater, EKEsefore # EKE,er %3! 9. If there is very loud sound, but they don't combine. 4. E Kinetic energy is conserved. 10 Kinetic energy is lost. 5. E Pool balls hitting each other. 11 E Newton's cradle 12 1 If the objects don't combine, but are damaged. An arrow shot at a target.

Elastic (E), Inelastic (1). or Perfectly Inelastic (P)? (There can be more than one.) 1. P Two objects combine together. 2. IP Momentum is conserved. 7. With Velcro. 8. Epsefore - Ep,fer and m,her= m,-2 3. IP Epsefre =Epater, EKEsefore # EKE,er %3! 9. If there is very loud sound, but they don't combine. 4. E Kinetic energy is conserved. 10 Kinetic energy is lost. 5. E Pool balls hitting each other. 11 E Newton's cradle 12 1 If the objects don't combine, but are damaged. An arrow shot at a target.

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Number 7 to 12 you could have more then one answer choice
Elastic (E), Inelastic (1), or Perfectly Inelastic (P)? (There can be more than one.) 1. P 2.EIP Momentum is conserved. Two objects combine together. 7. With Velcro. 8. Eprefore = Ep,fery and mater = m2 %3D 3. IL Epsefore = Epanter, EKEsefore # £KE,ner 9. If there is very loud sound, but they don't combine. 4. E Kinetic energy is conserved. 10 11 E Newton's cradle Kinetic energy is lost. E Pool balls hitting each other. 1 If the objects don't combine, but are damaged. 5. 6 An arrow shot at a target. (9. Inelastic collisions do not conserve kinetic energy. Does this violate the Law of Conservation of Energy? before after 2 kg + + 4 kg 2 kg 4 kg 20. Why or why not? 5 m/s 3 m/s v = ? 1.67 m/s 13. Calculate the final velocity of the 2 kg object. 21 If an object explodes when it collides, kinetic energy will increase. Is this elastic or inelastic? 22 Where does the extra energy come from? 14, Calculate EKEpefore. 23. A 10 kg mass going 4 m/s to the right hits a 6 kg object going 2 m/s left. The 10 kg ends up going 0.5 m/s left. A) Find the velocity of the 6 kg object afterwards. 15. Calculate EKE,fer. B) Was the collision elastic or inelastic? 16. Was kinetic energy conserved in the collision? 17. What kind of collision was it? 18. Do expect that the objects were damaged? Force vs. Time 6 Graph 1 Graph 1 or 2? Which force? 0 2 8. 10 12 14 24. 4 Shows + acceleration? 29. Has the greatest + force? Shows a weakening negative force? 25. Shows + Impulse? 30. -2 26. Has a negative area? -4 31. Shows a constant + force? The object will slow down in the positive direction. 27. B 32. Shows an object speeding -6 up in the + direction. Will slow down an object moving to the left. -8 28. Shows a decreasing + acceleration. 33. -10 Time (sec) 34. Find the impulse of Graph 1. Graph 2 Force vs. Time 12 10 35. Find the impulse of Graph 2. 6 D 36. If a 2 kg object going 4 m/s feels the impulse in Graph 2, calculate its final velocity. 4 2 0 12 3 45 6 7 89 10 11 12 Time (sec) Copyright © 2011, C. Stephen Murray cstephenmurray.com Force (N) Force (N)
Transcribed Image Text:Elastic (E), Inelastic (1), or Perfectly Inelastic (P)? (There can be more than one.) 1. P 2.EIP Momentum is conserved. Two objects combine together. 7. With Velcro. 8. Eprefore = Ep,fery and mater = m2 %3D 3. IL Epsefore = Epanter, EKEsefore # £KE,ner 9. If there is very loud sound, but they don't combine. 4. E Kinetic energy is conserved. 10 11 E Newton's cradle Kinetic energy is lost. E Pool balls hitting each other. 1 If the objects don't combine, but are damaged. 5. 6 An arrow shot at a target. (9. Inelastic collisions do not conserve kinetic energy. Does this violate the Law of Conservation of Energy? before after 2 kg + + 4 kg 2 kg 4 kg 20. Why or why not? 5 m/s 3 m/s v = ? 1.67 m/s 13. Calculate the final velocity of the 2 kg object. 21 If an object explodes when it collides, kinetic energy will increase. Is this elastic or inelastic? 22 Where does the extra energy come from? 14, Calculate EKEpefore. 23. A 10 kg mass going 4 m/s to the right hits a 6 kg object going 2 m/s left. The 10 kg ends up going 0.5 m/s left. A) Find the velocity of the 6 kg object afterwards. 15. Calculate EKE,fer. B) Was the collision elastic or inelastic? 16. Was kinetic energy conserved in the collision? 17. What kind of collision was it? 18. Do expect that the objects were damaged? Force vs. Time 6 Graph 1 Graph 1 or 2? Which force? 0 2 8. 10 12 14 24. 4 Shows + acceleration? 29. Has the greatest + force? Shows a weakening negative force? 25. Shows + Impulse? 30. -2 26. Has a negative area? -4 31. Shows a constant + force? The object will slow down in the positive direction. 27. B 32. Shows an object speeding -6 up in the + direction. Will slow down an object moving to the left. -8 28. Shows a decreasing + acceleration. 33. -10 Time (sec) 34. Find the impulse of Graph 1. Graph 2 Force vs. Time 12 10 35. Find the impulse of Graph 2. 6 D 36. If a 2 kg object going 4 m/s feels the impulse in Graph 2, calculate its final velocity. 4 2 0 12 3 45 6 7 89 10 11 12 Time (sec) Copyright © 2011, C. Stephen Murray cstephenmurray.com Force (N) Force (N)
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