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

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**MAE 242**Dynamics – Section I Dr. Kostas Sierros**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**• 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**Chapter 13: Kinetics of a particle**Force and acceleration • Kinetics • Inertial coordinate systems**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**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**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**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…**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**Until Tuesday morning…**…and do not forget Monday’s help session