Welcome to the website of ME 274 for the Fall 2008 semester. On this site you can view blog posts, add your own blog posts and add comments to existing posts. In addition to the blog are links to course material: course information, information on solution videos, exams, quizzes, homeworks and other course-related material. Direct links to the homework solution videos are also available on the left side of this page.


The following is a reverse chronological order listing of the posts for the course blog. To add a post, click here (when adding posts, be sure to add a "label" in the box at the lower right side of the post window). To add a comment to an existing post, click on the "Comments" link below the post.


____________________________________________________

Dec 15, 2008

Final Exam - details

The final examination is scheduled for 8:00-10:00AM on Tuesday, December 16 in SMTH 108 (same room as for Exams 1-3).

The exam will be comprehensive, covering topics over the entire course. There will be five questions: three full-length questions and two short calculations/short answer questions. 

The full length questions will cover:
  1. Newton-Euler equations (particles and/or rigid bodies)
  2. Work-energy or impulse-momentum equations (particles and/or rigid bodies)
  3. Vibrations: EOM and forced response
Sample exam questions 18-35 are related to the material covered on the full-length problems on the exam. Video solutions for these sample exam questions along with Solution Video Modules related to this same material are provided through the links below. Or, just use the usual links. Links to the homework problem solution videos are found on the Homework page link on the left side of the blog.

Each short calculation/short answer question has five parts. The short calculation/short answer problems cover all material in the course EXCEPT 2D and 3D moving reference frame kinematics.

Click here for the cover and equation pages for the final exam.


_____________________________________________________

Sample Exam Solutions: Use scrollbar to locate video; click on image to view video.






Solution Video Modules: Use mouse to turn pages; click on image to view video.






9 comments:

Sam Morford said...

I am having trouble accessing the videos for problems 18-27. The other ones are fine. Whenever I try to open them it takes me to a Livescribe page...

CMK said...

You are on the right pages. You should see a small screen with the solution video. Click on the "full screen" button. Then use the controller at the bottom of the page to play the video.

Let me know if this does not work.

nour said...

Is the solution for sample problem 26 not posted on purpose?

BoilerBrian said...

If we get a problem similar to 8/50 tomorrow, after we have found the equation for the amplitude (e.g. X=.833/(1-(w/w_n)^2) ), do we need to show calculations for w or can we use a calculator to graph it and find the intersections with 3 and -3?

BoilerBrian said...

I don't know why, but 8_091 is linked to 8_050's page. Is there another way to access 8_091's video?

CMK said...

--to nour--
The reason that Problem 26 is not posted is simply that I got tired of working impact problems. There are many other impact problems worked out in the sample exam solutions. I can guarantee that this problem will not be on the exam, if that helps.

Sorry for being lazy.

CMK said...

--to Brian Hunt--

Ooops ... not sure why I had the wrong link for that file. It has now been fixed, and Problem 8/91 appears when you click on that link. Sorry for the error.

Concerning your question on Problem 8/50:
Please indicate from where your solution comes when you use an equation solving on your calculator. If you simply write down the answer, I will not know from where it came. However, I would warn against using a solver on a problem such as this. It will likely give you only one solution unless you are careful. In this problem, you need two solutions.

kmjones said...

on problem 8/91, why can we assume that G, the center of mass, is at 1/2L?

CMK said...

In this problem, I treated the T-shaped body as being made up of two parts: the upper part having a mass of m/2 and CM at O, and the lower part having a mass of m/2 and CM at its midpoint.

The CM of the composite body, if you were to figure it out, would be somewhere between the two CM's.