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#### Presentation Transcript

**1. **Kinetics of Particles ENGR 221
April 23, 2003

**2. **Lecture Goals
Energy
Work
Examples

**3. **Work and Energy Methods

**4. **Energy Method

**5. **Definition of Acceleration

**6. **Energy Method

**7. **Kinetic Energy

**8. **Kinetic Energy

**9. **Kinetic Energy

**10. **Work

**11. **Work

**12. **Work

**13. **Massless Springs

**14. **Principle of Work and Kinetic Energy

**15. **Problem Solving Technique

**16. **Example Problem – Energy

**17. **Example Problem – Energy

**18. **Example Problem – Energy

**19. **Example Problem – Energy

**20. **Example Problem – Energy

**21. **Example Problem – Energy

**22. **Example Problem – Energy

**23. **Class Problem – Energy

**24. **Class Problem – Energy

**25. **Example Problem – Work

**26. **Example Problem – Work

**27. **Example Problem – Work

**28. **Example Problem – Work

**29. **Example Problem – Energy

**30. **Example Problem – Energy

**31. **Example Problem – Energy

**32. **Example Problem – Energy

**33. **Example Problem – Energy

**34. **Class Problem – Energy

**35. **Class Problem – Energy

**36. **Class Problem – Energy

**37. **Homework

**38. **Bonus Problem – Energy

**39. **Example Problem – Energy