ME 321 Homework


United States
Hi all,
I have changed the date that the first assignment is due from Tuesday, September 12 to Thursday, September 14...
-dq
I changed it again... its now due Tuesday, September 19, 2017...

Hello Dr. Quinn,
I just had a question regarding the problems for homework 1. Most of the problems have numbers to the right of them. For example, Problem 1: 1, 01–05. What does the 1, 01–05 exactly mean? Is it relating to problems in the book?
-Mackenli

Hello Dr Quinn!
Have you posted the HW 1 solutions yet? it looks like there is a hw1 under the solutions section but no content.
Thanks, Matt
United States
Hi Matt,
It's there now...
-dq
Dr Quinn, Where exactly are the HW solutions? Thanks
United States
The Homework Solutions page can be found through the menu (on the right of the course page), and there is a link below the homework assignments. It is also here.

United States
Hi all,
Just a reminder that there will be a homework quiz on Tuesday. I'll give you one of the problems from Homework 01.
-dq
For those of us who have a class directly afterwards should we come into class earlier or is that not to worry about unless we have an exam?

Hi Dr Quinn,

I'm having a small confusion with the solutions for problem 5. When computing the dot products to get everything in terms of theta2 it seems that the sign changes on the (j . i2) and it seems to me with would be positive sine since i2 is in the positive j direction. I'm hoping you can help clarify this for me.

Thanks for your help!
Matt
United States
Hi Matt,
There is an error in the solutions :-( . On line three the sign of the term in question is wrong, but is then corrected on the following line, so the final answer is correct.
-dq
Yes I see the error now, the double negative in the previous line does change it too positive.
Thanks!
Matt