Engineering Dynamics

PHY/EGR 321 Engineering Dynamics

Course Description The is an intermediate level course (four hours credit) in dynamics that employs various problem solving methods and the laws of mechanics to analyze and obtain solutions to fundamental problems in engineering and physics.

Course Prerequisite PHY/EGR 250 (Engineering Statics)

Textbook Requirements Listed each semester from a link on http://www.physics.sfasu.edu/

Course Objectives The main objective of this course in mechanics is to develop in the engineering/physics student the ability to analyze any problem in a simple and logical manner and to apply to its solution a few, well-understood, basic principles. A cooperative problem solving approach is taken where students develop time management skills and teaming skills.

Student Learning Outcomes/Competencies  To demonstrate a knowledge and understanding of the laws of classical mechanics to include representing these laws in mathematical expressions with appropriate units for physical quantities.  To develop quantitative and analytical skills necessary to solving physics/engineering problems.  To demonstrate competencies in oral presentations of physics/engineering problems to one’s peers.  To gain experience in team work.

Course Content  Kinematics - Description of Rectilinear and Curvilinear Motions  Kinetics - Newton’s Laws of Motion and Linear Momentum  Conservation Principles - Momentum, Angular Momentum and Energy  Rigid Bodies - Kinematics, Kinetics, Energy and Momentum Methods, Plane Motion, and Three Dimensional Motion

Course Assessment The course assessment may use any or all of the following evaluation tools: exam scores, classroom participation, homework average, quizzes, and team projects. PHY/EGR 321.001 (Engineering Dynamics) - Spring 2008

Instructor: Harry D. Downing, Office - Room 322B Miller Science Building Phone - 2290 or 3001 and Fax - 4448 E-mail - [email protected], Physics Homepage - www.physics.sfasu.edu

Office Hours: 10:00-10:50 MTWRF, 2:30-3:30 TWR, or by appointment

th Text: Vector Mechanics for Engineers: Statics and Dynamics (8 Ed.) by Beer & Johnston

Course Information

There will be 3 tests worth 100 points each. The final exam will count 1.5 times as much as a regular exam, and it is comprehensive. The exams will be worth 75% of your grade and the homework will be worth 25%. Grades will be assigned according to the following percentages.

90 - 100% A 80 - 89% B 70 - 79% C 60 - 69% D 0 - 59% F

Students will have one week after the return of their graded exams to discuss any possible errors made in the grading. Thereafter, no changes will be made concerning the grades for that exam. Keys to each exam will be posted in or near the lecture room after each test. In each case the keys will be removed when new keys are posted. Absences from lab must be made up through extra homework. The first absence incurs one extra homework problem. Any further absences will incur three extra homework problems for each absence occurrence. Each of these extra homework problems must be submitted until each is completely correct. A deadline will be set for the completion of each extra problem. Failure to meet this deadline will increase the number of problems required. Failure to complete all extra homework by the end of the semester will result in a grade of WH until the work is totally completed. (WH’s turn to F’s if not completed within one year.) Every four absences from lecture will count as if it were one lab absence, and lab absence rules will apply. Every four tardies (five minutes or more late) to lecture or lab will count as one lecture absence. Students should become familiar with the policies on cheating and plagiarism.

This syllabus is just a guide. The test dates are semi-firm. Be sure to note those and do not schedule activities that will conflict with them. If you miss an exam with a reasonable excuse, you will be allowed to count the final exam extra to replace your missed exam. Reasonable excuses must be written and from the proper authority. Students with documented disabilities who need course adaptations or accommodations should make an appointment with the instructor as soon as possible. Bring this syllabus to every class meeting. Calendar and hints follow. PHY/EGR 321 Spring 2008 Calendar Format for PHY/EGR 321 Homework Monday Tuesday Wednesday Thursday Friday Jan 14 Jan 15 Jan 16 Jan 17 Jan 18 Your homework problems will be of professional quality and professionally presented. Intro. & Ch. 11 Ch. 11 Add Deadline Ch. 11 They will be complete in themselves to the extent Jan 21 Jan 22 Jan 23 Jan 24 Jan 25 that any competent person, without reference to MLK Holiday Ch. 11 Ch. 11 any material other than what you present, can determine the following: (a) the problem you are 12 th Day Jan 28 Jan 29 Jan 30 Jan 31 Feb 1 solving, (b) your method of solution, and (c) your Ch. 12 Ch. 12 Ch. 12 answer. To assure these things you must adhere to the following rules. Feb 4 Feb 5 Feb 6 Feb 7 Feb 8 Ch. 12 Ch. 13 Ch. 13 1. Use engineering pad paper for your problems th and cover sheet. The cover sheet must include Feb 11 20 Day Feb 12 Feb 13 Feb 14 Feb 15 the following information or the homework Ch. 13, Test 1 Ch. 13 Ch. 13 will not be graded: Feb 18 Feb 19 Feb 20 Feb 21 Feb 22  Your name  Course and number Ch. 13 Ch. 13 Ch. 14  Date Feb 25 Feb 26 Feb 27 Feb 28 Feb 29  Problems contained within the set  A space for assigning a grade Ch. 14 Ch. 14 Ch. 14  Proper staple in upper left Mar 3 Mar 4 Mar 5 Mid Term Mar 6 Mar 7 Ch. 15, Test 2 Ch. 15 Ch. 15 2. Before submitting homework for grading, check for the following: Mar 10 Mar 11 Mar 12 Mar 13 Mar 14  Problem number and statement Spring Break Spring Break Spring Break Spring Break Spring Break  Problems neat and in correct order Degree WP/WF  Organized steps in the solution Mar 17 Mar 18 Mar 19 Mar 20 Mar 21 Deadline Deadline  Identification of the answers with boxes Ch. 15 Ch. 15 Easter Break Easter Break  Sufficient space for grader comments Mar 24 Mar 25 Mar 26 Mar 27 Mar 28  No more than one problem per page  No pages with work on the back side Ch. 15 Ch. 15 Ch. 16  Homework left flat (not folded) Mar 31 Apr 1 Apr 2 Apr 3 Apr 4  Pencil used instead of ink Ch. 16 Ch. 16 Ch. 17 3. Include the following when appropriate while Apr 7 Apr 8 Apr 9 Apr 10 Apr 11 working a problem: Ch.17 Ch. 17 Ch. 17  Sketch  Definition of variables used Apr 14 Apr 15 Apr 16 Apr 17 Apr 18  Units and vector arrows Ch. 17, Test 3 Ch. 17 Ch. 17  Numbering of equations for clarity  Needed graphs at the back of the problem Apr 21Withdraw Apr 22 Apr 23 Apr 24 Apr 25 Deadline Ch. 18 Ch. 18 Ch. 18 Homework Grades Apr 28 Apr 29 Apr 30 May 1 May 2 Homework will be due in class on the date Ch. 18 Ch. 18 Ch. 18 requested. Late homework is unacceptable. Each May 5 May 6 May 7 May 8 May 9 problem will be graded on a 5 point scale with partial credit given. Oral presentations, Final 8-11 attendance, and performance during the problem F I N A L S Comprehensive sessions will count as 50% of the homework average. You are expected to know how to work any problem that you have submitted as a completed problem for homework, and you may at any time be requested to work that problem for homework credit. “See me’s” and “get out of jail” passes will be discussed in class.

F I N A L S Classroom Policies For the benefit of your fellow students and your instructor, you are expected to practice common courtesy with regard to all course interactions. For example:  Be considerate toward your classmates and instructor and arrive to class on time.  Do not leave class early and do not rustle papers in preparation to leave before class is dismissed.  Avoid classroom distractions. Be attentive in class, stay awake, and do not read newspapers, etc.  If you are late to class or must leave early, please inform your instructor in advance (enter or leave quietly, don’t walk across the front of the classroom (use the side aisles) and don’t walk in front of the projector).  Cell phones, pagers and other communication devices must be turned off during class.  Be kind and respectful to your fellow students and your teachers.

Here is the University Policy on Cheating and Plagiarism: http://www.sfasu.edu/policies/academic_integrity.asp Cheating includes but is not limited to (1) using or attempting to use unauthorized materials to aid in achieving a better grade on a component of a class (homework, clicker, exams, lecture or lab); (2) the falsification or invention of any information, and/or (3) helping or attempting to help another in an act of cheating or plagiarism. Penalties may include no credit for component or failure of the course.

Email Communications Make sure you always use your SFA e-mail account for network correspondence. Messages from your instructor will be sent to your SFA email account periodically. To get a free SFA email account go to https://apache.sfasu.edu/accountman/. You may forward e-mail from your SFA e-mail address to another address of your choice. To do this, use this link: https://apache.sfasu.edu/accountman/mailindex.html.

Hints for Success in PHY/EGR 321  You will benefit much more from lecture if you read the text material before coming to class.  Attend class and take notes. Don’t try to copy everything I say, write on the board, or show in slides or video. Leave enough space in your notes to complement them through a thorough reading of the text material. I generally present material in class in the same order as the text. This makes it easier for you to augment your notes.  Read the “Solving Problems on Your Own” sections preceding the problems and the “Review and Summary” section at the end of each chapter.  If you have problems trying to comprehend this material, please do not hesitate to come and visit with me. I have truly enjoyed working with students, and often I have found that I am most effective with them when they have brought their questions and problems to me in my office.

 The most important things you can do are read the book, attend class and be attentive, and do the homework!!!

Bring this syllabus to every class meeting.