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MAE 242 Dynamics – Section I Dr. Kostas Sierros

MAE 242 Dynamics – Section I Dr. Kostas Sierros. Problem 1. Problem 2. Problem 3. Review 1. Chapter 12 : Kinematics of a particle Chapter 13 : Kinetics of a particle: Force and acceleration Chapter 14 : Kinetics of a particle: Work and energy. Chapter 12: Kinematics of a particle.

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MAE 242 Dynamics – Section I Dr. Kostas Sierros

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  1. MAE 242 Dynamics – Section I Dr. Kostas Sierros

  2. Problem 1

  3. Problem 2

  4. Problem 3

  5. Review 1 • Chapter 12: Kinematics of a particle • Chapter 13: Kinetics of a particle: Force and acceleration • Chapter 14: Kinetics of a particle: Work and energy

  6. Chapter 12: Kinematics of a particle • Rectilinear kinematics • Graphical solutions • Curvilinear motion x,y,z • Projectile motion • Curvilinear motion n,t • Curvilinear motion r, θ, z • Absolute dependent motion of two particles • Relative – motion analysis using translating axes

  7. Chapter 13: Kinetics of a particle Force and acceleration • Kinetics • Inertial coordinate systems

  8. Chapter 14: Kinetics of a particle Work and energy • Work of a force • The principle of work and energy • Power and efficiency • Conservation of energy

  9. General exam rules • Midterm exam 1 will consist of 4 questions. 3 questions must be solved. The 4th question will be a bonus question. • Sub-questions may include statements of theoretical definitions • Midterm exam counts for 15% of the total mark • I will bring new formulae sheets. Come on time. Since the lecture theatre will be used for another class at 9:15, there will be no extra time • Calculators with memory are not allowed

  10. Problem solving MUSTS • Read the problem carefully (and read it again) • Physical situation and theory link • Draw diagrams and tabulate problem data • Coordinate system!!! • Solve equations and be careful with units • Be critical. A mass of an aeroplane can not be 50 g • Read the problem carefully

  11. Problems solved in class I 12.9, 12.22, 12.26, 12.42, 12.53, 12.65, 12.71, 12.83, 12.84, 12.100, 12.111, 12.153 13.5, 13.15, 13.34, 13.45, 13.51 14.10, 14.15, 14.17, 14.65 …plus some examples and some homework questions…

  12. Problems solved in class II Solutions to all problems solved in class will be posted today http://www.mae.wvu.edu/~cairns/teaching.htmlHelp session will take place on Monday 24th of September between 4:30 - 5:30 in 355 ESB Please form groups of 4

  13. Until Tuesday morning… …and do not forget Monday’s help session

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