Solutions to FE Exam “Dynamics” Review Problems Prepared by

Solutions to FE Exam “Dynamics” Review Problems

Prepared by

Stephen F. Felszeghy

CSULA Emeritus Professor of Mechanical Engineering

Presented here are my solutions to the “Dynamics” review problems that used to be available online, until the end

of 2017, on the website for the book: Beer and Johnston, Vector Mechanics for Engineers, Statics and Dynamics,

Ninth Edition, 2010, at: http://highered.mcgraw-hill.com/sites/0073529400/information_center_view0/ . Before

these review problems went “Out of Print,” I downloaded and collected them in the following “problems.pdf” file:

https://www.calstatela.edu/sites/default/files/problems.pdf .

My solutions, which you will find below, are for the review problems that are associated with the following

chapters and topics in the above book:

Chpt. 11: Kinematics of Particles

Chpt. 12: Kinetics of Particles: Newton's Second Law

Chpt. 13: Kinetics of Particles: Energy and Momentum Methods

Chpt. 14: Systems of Particles

Chpt. 15: Kinematics of Rigid Bodies

Chpt. 16: Plane Motion of Rigid Bodies: Forces and Accelerations

Chpt. 17: Plane Motion of Rigid Bodies: Energy and Momentum Methods

Chpt. 19: Mechanical Vibrations

As I mentioned in class, some of the formerly available online problem statements had errors in them, and some

online solutions and answers were wrong! For this reason, I have included in the above mentioned

“problems.pdf” file a list of errors and corrections. Although I shared the errors and corrections with McGraw-Hill,

the company never made any corrections to its Website.

The formerly available online problems were not numbered; they were identified by chapter numbers only. For

this reason, when I downloaded the online problems, I numbered them consecutively in a decimal format, XX.X,

where XX refers to the chapter number, and X stands for the sequence number. All the downloaded problems

numbered this way are included in the above mentioned “problems.pdf” file under the heading: “Part 1, FE Exam

Review, Online Problems and Solutions.”

My own solutions, which you will find below, follow the problem numbering scheme I established above. I

included sketches in my solutions to allow you to identify more easily the problems to which my solutions apply.

I wish you all the best on your computer-based FE exam!