Engineering Mechanics 12: Dynamics
Spring 1999, Sections: 6, 7, 8, 9, 10, 11

Final Exam Announcement

The Final Exam will be held at 6:50pm-8:40pm on Thursday, May 6, 1999. Please report to the room listed next to your section number.
Final Exam Room Assignments
LocationSections
121 Sparks4,5,6,10
10 Sparks7,8,9,11
111 Boucke1,2

Exam 3 Solutions

Exam 2 Solutions

Download the Equation Sheet


Engineering Mechanics is that engineering science that relates Forces (push, pull) and Torques(twist) to the motion (deformation, acceleration, velocity) of bodies. Understanding such concepts is essential to those who wish to design efficient engineering components ranging from bridges to a wing strut to a robot arm, to the mother board of a computer. Statics (EMch 11) is the foundation course on which three stems are constructed: Dynamics (EMch 12) for motion, Strength of Materials (EMch 13) for deformation and fracture criteria for solids, and Fluid Mechanics. Mechanics courses are based on modeling engineering components via the Free Body Diagram, applying the equations of motion, then solving these equations for wanted quantities while utilizing the particular set of boundary conditions appropriate to the expected situation.

TEXT (required): "Engineering Mechanics - Dynamics" by A. Pytel and J. Kiusalaas (the combined text "Statics and Dynamics" is much cheaper than the sum of two (Statics:Dynamics) individual texts)
TEXT (Optional):"Study Guide" for Engineering Mechanics - Dynamics by J. Pytel

Course Objectives
To provide tools and the guidence to allow you to master:
The calculus of Vectors (derivatives of displacement and velocity)
The Free Body Diagram (FBD) concept to illustrate and model the action of one body on another body
The use of Newton's equations of motion to find accelerations of the Center of Mass as well as angular accelerations
Integration of the accelerations to find velocity and displacement as functions of time
Integration of the angular accelerations to find angular velocity and displacement as functions of time
Utilize Work-Energy principles to find relationships between velocity and position (time is not an explicit factor)
Utilize the Impulse-Momentum principles in cases of impact to find approximate solutions immeadiately after impact
The utilization of the equilibrium equations and the FBD to solve real engineering problems! -- That is, we wish to help you attain the tools, the mindset, and approach(es) that are useful in translating a physical situation into an analytical freamework, and to use the various tools of mathematics to "solve" for wanted information.

Expectations
We expect that students in this class will have a working knowledge of:
Trigonometry (sines, cosines, direction cosines, etc.)
Vector Calculus ("Dot" and "Cross" products) orthogonal representations
Free Body Diagrams (FBD's)
Differential and Integral Calculus
Spatial visualization engineering sketching

Special Help from ESM Department
Scheduling of classes in relatively small recitation sections in order that you can participate in class discussion
Providing adequate office hours for visits with your recitation instructor, (EMch 12 business should conducted with that individual)
Providing tutoring session hours to provide timely help in the solution of homework problems
Create, produce, and grade "real" engineering test problems which are similar to the homework problems (in contrast to multiple choice machine grading exams). Provide partial credit when appropriate (please note the attachement on "partial grading" policy).
Confide in you the key to success in an Engineering Course: Do all the homework problems, and as many other problems as possible.


Exam 2 Solutions
Regular Exam
Conflict Exam

Exam 3 Solutions
Regular Exam
Conflict Exam

Get the the Equation sheet
PostScript Version of the Equation Sheet
PDF Version of the Equation Sheet
Equation sheets courtesy of Profs. Gray and Costanzo

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© Copyright 1998-1999 by R. P. McNitt, Vijay Venugopal and Andrew J. Miller. All rights reserved.