COLLEGE OF SOUTHERN MARYLAND
EGR 2210-68820
MECHANICS II (DYNAMICS)
COURSE INFORMATION: Fall 2008
INSTRUCTOR:
OFFICE:
TELEPHONE:
E-MAIL:
OFFICE HOURS
AND LOCATION:
Fawaz Roumani,Ph.D.
ST 193
934-7805 or 870-2309, ext. 7805
faroumani@csmd.edu
MW
10:00AM - 12:00 PM
TTH:
11:55AM - 12:25 PM
and by appointment
ST193
ST193
PREREQUISITES:
CREDITS:
MEETING TIMES
AND LOCATION:
EGR 1210, MTH 1200, PHY 1210
3
ST140 TTH 04:00 PM – 5:20 PM
REQUIRED TEXTBOOK:
REQUIRED MATERIAL :
Engineering Mechanics: Dynamics, 11th Ed., R. C. Hibbeler
Scientific Calculator
DESCRIPTION OF COURSE:
A study of the behavior of bodies in motion, including the kinematics and kinetics of particles,
systems of particles, and rigid bodies in plane motion. Kinetics problems are solved by direct
applications of Newton's Laws and by use of energy and momentum methods.
OBJECTIVES:
You will learn how to:
1. Relate time, position, velocity, and acceleration of particles using rectangular components,
normal and tangential components, and cylindrical components.
2. Solve particle kinetics problems using Newton's 2nd Law, work-energy methods, and
impulse-momentum methods.
3. Use vectors to describe the motion of a rigid body undergoing translation, rotation about a
fixed axis, and general plane motion.
4. Use Newton's laws and work-energy methods to solve kinetics problems involving
coplanar motion of a rigid body.
EXPECTATIONS
In order for you to be successful in your engineering courses, the mathematics, physics, and
engineering faculty has developed the following common expectations of all students in
engineering courses.
1. As a student, you need to take responsibility for your own learning. This includes, but is not
limited to:
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Arriving on time for each class
Staying for the entire class and not leaving class early
Actively participating in class and not sleeping or putting your head down
Not engaging in other activities that detract from the classroom learning experience
Bringing the required materials to class. These might include textbooks, notebooks,
binders, pencils, pens, and calculators.
Taking care of all business (phone calls, bathroom breaks, getting food, drinks, things
from cars, etc.) before class starts.
2. You are expected to be an active learner in the classroom as well as out: to participate in group
discussion, ask and answer questions, and work problems at the board.
3. You are expected to study your textbook, not merely work problems from it. The best way to
do this is to read the section to be covered before the lecture is given, listen to the lecture and
take notes, and then study the text again before tackling the practice problems. If this seems
like a lot of work, remember that you need to allot 2 hours outside of class for each hour in
class. This time commitment increases for online, web-hybrid, and computer-assisted classes.
4. There is no substitute for continued and ongoing studying and doing homework problems. The
best way to learn engineering is to do engineering.
5. It is your responsibility to keep your homework up-to-date. If you are having difficulty with the
course material, then you need to take action right away – do not wait until you have lost all
hope! There are several options to get assistance:
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Talk to your instructor during office hours.
Visit the student success center on campus. Tutors and hours are available at
www.csmd.edu/StudentSuccess/Tutoring/
Use online tutoring available at www.smarthinking.com
6. Realize that college level engineering can be hard and is not always fun.
7. You are given the means to keep track of your grade and are expected to take responsibility for
knowing your grade status throughout the semester.
8. Learning engineering is different from learning some other subjects. In a engineering course,
you must be able to do four things:
a. Understand the material.
b. Process the material.
c. Apply what you have learned to solve a problem correctly, and
d. Remember what you have learned in order to learn new material.
9. Another reason that learning engineering is different from learning other subjects is that it
follows a sequential learning pattern, which simply means that the material learned on one day
is used the next day and the next day, and so forth. This building block approach to learning
engineering is the reason it is difficult to catch up when you fall behind.
10. College courses cover twice the material in the same time frame as do high school courses.
Faculty members have a certain amount of material to be covered each semester. They have to
finish certain chapters because the next course is based on the information taught in this course.
Improve your study skills so you can keep up!
11. Most of the exams and quizzes are timed and many students think that they will run out of time.
Most engineering problems involve the application of the laws of physics and the expression of
these laws in mathematical terms. Students not only must understand how to apply the physical
laws but also must use mathematical principles well enough to complete the problems with
enough speed to finish the test. In many cases, more than one engineering approach can be
used to solve a particular problem. Be sure to learn all of the approaches well enough to tackle
problem solving with confidence.
12. During the first few days of class, do not take the attitude that “I already know this material”
and start to slack off by not taking notes or not completing homework assignments. Good study
habits start from the first day of class. Start practicing good study habits now while the material
is familiar to you. In that way, those habits will already be a part of your routine when the
material becomes more challenging.
13. Take pride in your work and never let yourself fall into the trap of believing that you cannot do
engineering. Virtually everybody can, if he or she is willing to work hard enough. Be
persistent and determined in your work.
TESTING & GRADING:
Your grade in this course will result from scores earned on class participation, quizzes, special
assignments and tests. All quizzes, special assignments and tests will be based on material
presented in class and covered in assigned sections of the textbook.
Class participation: You are encouraged to answer the instructor’s questions even if you are
not sure about your answer and to ask questions related to the subject covered. Being present in
every class is not sufficient to receive full credit assigned for class participation .Be active in
class in order to receive full credit assigned for class participation .Attendance will be checked
every class.
Quizzes: You will be asked to bring with you to the next class the solved homework of certain
sections. At the beginning of the class four or five problems from the homework problems of
these sections will be selected and collected .The collected problems will be considered as a
quiz.
There will be 4 such quizzes; each scheduled at least one class meeting in advance. Missed
quizzes cannot be made up. However, your lowest quiz grade will be dropped.
Special Assignments
A special assignment is a take home test that can be worked out in group and open books, and
must be turned at the beginning of next class. No late special assignments will be accepted.
There will be four special assignments, one before each test.
Homework: Homework will not be collected, but since parts of it might be considered as a
quiz, you are encouraged to do the homework on a regular basis, to ensure that you will be
participating at each quiz. Your homework problems must be neatly written in order to be
accepted .Tiered pages from notebooks are not accepted.
Tests: There will be four full-period tests on as indicated on the Course Outline. Missed tests
can be made up only in the event of an unavoidable absence.
Your Grade in the Course: Your final grade will be computed as follows:
Class participation
5%
Quizzes
15 % (5 % for each of the best three quizzes)
Special Assignments
20 % (5 % for each of the four special assignment)
Unit Tests
60 % (15 % for each of the four tests)
The correspondence between numerical and a letter grade is as follows:
90 - 100: A
80 - 89: B
70 – 79: C
60 - 69:D
059:F
FX Grade
A grade of “FX” is given at midterm and at the end of the semester if a student has not been
attending the class. If the student has not attended for an extended length of time, the grade of
FX will be given. The grade will appear on the transcript and equate to an “F” in the grade
point calculation
ATTENDANCE AND HOMEWORK
It is absolutely essential that you attend every class meeting and do all of the assigned
homework. New material will be introduced and example problems will be worked at almost
all class meetings. Carefully chosen homework problems will be assigned to be worked by you
before the next class meeting.
The single most important thing that you can do to be successful in this course is to stay
up to date: work on assigned homework before the next class meeting and get any questions
cleared up before it is time to work on the next set of homework.
If you need help, you should ask questions in class, make use of the study guide accompanying
the textbook, and/or see me during office hours.
AUDIT:
If you are auditing the course, you are expected to attend class regularly. If you anticipate
switching from audit to credit, you must take all quizzes and tests just as if you were enrolled
for credit.
If you switch from credit to audit, you are expected to continue to attend class and take all
remaining quizzes and tests.
The last day for withdrawing, switching from credit to audit, or switching from audit to credit is
November 10th, 2008.
ACADEMIC HONESTY:
While it is understood that students may consult each other during completion of homework,
each student is expected to turn in his or her own work. Work turned in that could have
resulted only from copying will result in a grade of zero on the assignment for all involved
students.
Students giving or receiving help on a quiz or test will receive a zero on that quiz or test. Any
evidence of cheating will be forwarded to the Director of Student Affairs and the College
Judicial Committee.
You are referred to the College of southern Maryland Student Handbook for further information
regarding academic honesty.
STUDENTS WITH DISABILITIES:
If you need special accommodations or services due to a disabling condition, please let me
know as soon as possible.
UNAUTHORIZED VISITORS TO THE CLASSROOM:
In compliance with college policy, students are prohibited from bringing guests into the
classroom while instruction or testing is going on.
Cell Phones
To preserve a positive learning environment, please turn off your cell phones in class .A cell
phone can not be used as a calculator in class and during quizzes and tests. Text messaging
during class is not permitted under any circumstances.
EGR 2210 -68820
MECHANICS II (DYNAMICS)
COURSE OUTLINE
TEXTBOOK: Engineering Mechanics: Dynamics, R. C. Hibbeler, 11th Edition
Session
Topics
Text
1
Rectilinear Motion
12.1, 12.2
2
Rectilinear Motion, continued
12.2, 12.3
3
Curvilinear Motion: Rectangular Coordinates
12.4 - 12.6
4
Curvilinear Motion: Normal and Tangential
Components
12.9
5
Curvilinear Motion: Cylindrical Coordinates
12.8
6
Relative Motion
12.9, 12.10
7
Problem Session
8
Test
9
Kinetics of Particles: Rectangular Coordinates
13.1 - 13.4
10
Kinetics of Particles: Normal and Tangential
Components, Cylindrical Components
13.5, 13.6
11
Work and Energy
14.1 - 14.3
12
Power, Conservation of Energy
14.4 - 14.6
13
Linear Impulse and Momentum
15.1 - 15.3
14
Impact
15.3, 15.4
15
Problem Session
16
Test
17
Angular Impulse and Momentum
15.5 - 15.7
18
Kinematics of Rigid Bodies: Translation and
Fixed Axis Rotation
16.1 - 16.3
19
General Plane Motion: Velocity
16.5
20
Instantaneous Center
16.6
21
General Plane Motion: Acceleration
16.7
22
Mass Moment of Inertia
17.1
23
Test
Assignment
Will be assigned each
class
24
Kinetics of Rigid Bodies: Translation
17.2, 17.3
25
Rotation about a Fixed Axis, other
Constrained Plane Motion
17.4, 17.5
26
General Plane Motion
17.5
27
Work and Energy
18.1 - 18.4
28
Conservation of Energy
18.5
29
Test