Homework and Reading guide

Homework guidelines: Homework is due at NOON Fri. in the box just outside 122 Votey Hall. On every homework assignment please do the things listed below. After a few weeks of getting used to these you will have to follow all of them to get any credit on homework.

a) On the top right corner neatly print the following, making appropriate substitutions as appropriate:
    Sally Rogers
     HW 2 Due Oct. 7, 2007
     CE 001
b) STAPLE your homework in the top left corner.
c) Use only the front side of each sheet.
d) You are encouraged to work with others on homework; you will gain more by explaining to and learning from other students. At the top clearly acknowledge all help you got from TAs, faculty, students, or ANY other source (but for lecture, text, and office hours only). Examples could be "Mary Jones pointed out to me that I needed to draw the second FBD in problem 2." or "Nadia Chow showed me how to do problem 3 from start to finish." or "I basically copied this solution from a Tau Beta Sigma frat file." etc. If your instructor or grader thinks you are taking too much from other sources he/she will tell you. In the mean time, don't violate academic integrity rules and be unclear about what of your presentation you worked out on your own.
e) Every use of force, moment, momentum, or angular momentum balance must be associated with a clear correct free body diagram.
f) Your vector notation must be clear and correct.
g) Every line of every calculation must be dimensionally correct. (Carry your units.)
h) Your work should be laid out neatly enough to read. Part of your job as an engineer is not just to get the right answer, but to communicate its justification clearly. So that is part of your job on the homework as well.
i) Write equations in symbolic form before plugging in numerical values and solving. It makes it easier for you and us to check your work. This is also a much desired practice for your exam solutions.

Homework grading and solutions: We will grade carefully two of the homework problems each week,not announced in advance (10 pts. ea.); the rest will be checked for an honest attempt to complete them (2 pts. ea.). The carefully graded problems will not be announced in advance. We will penalize late homework and will not accept homework after the solutions are posted. Solutions will be posted on the Monday after the homework is due. Here is the link:
HW Solutions
The recitation problems are also posted there.

Homework assignments:

Homework 1, due Fri. Sep. 12.
Topic: Introduction to mechanics; Vectors for mechanics
Reading guide: Ch.1, Ch. 2
Problems:   1) 2-39 2) 2-50  3) 2-52  4) 2-57  5) 2-58  6) 2-84.

Homework 2, due Fri. Sep. 19.
Topic: Vectors, continued.
Reading guide: Ch. 2.
Problems:   1) 2-89  2) 2-93  3) 2-96   4) 2-101  5) 2-111  6) 2-114   7) 2-115.

Homework 3, due Fri. Sep. 26.
Topic: Equilibrium of a Particle; Free Body Diagrams (FBD's)
Reading guide: Ch. 3.
Problems:   1) 3-10   2) 3-15  3) 3-24   4) 3-39  5) 3-43  6) 3-47   7) 3-31 (optional, extra credit)

Homework 4, due Fri. Oct. 10.
Topic: Force System Resultants: Moments of a Force
Reading guide: Ch. 4.1-5
Problems:   1) 4-6   2) 4-8  3) 4-10  4) 4-16  5) 4-42  6) 4-43  7) 4-50, also find d shown in the diagram.

Homework 5, due Fri. Oct. 17 .
Topic: Force System Resltants: Moments of a Force (cont.)
Reading guide: 4.6-4.9
Problems:   1) 4-58 2) 4-73  3) 4-105  4) 4-110  5)4-114  6) 4-131.

Homework 6, due Fri. Oct. 24.
Topic: Distributed Load Resultants; 2D Rigid Body Equilibrium.
Reading guide: Ch 4.10, Ch. 5.1-4.
Problems:   1) 4-140 2) 4-156  3) 5-11  4) 5-13  5) 5-14  6) 5-16.  

Homework 7, due Fri. Oct. 31.
Topic: 2D and 3D Rigid Body Equilibrium
Reading guide: Ch. 5
Problems:   1) 5-37 Note: the brake pedal is frictionlessly hinged at point D and the switch makes frictionless contact at C.   2) 5-40   3) 5-63  4) 5-64  5) 5-65  6) 5-81.

Homework 8, due Fri. Nov. 14 .
Topic: Structural analysis of mutli-rigid-body systems: trusses.
Reading guide: Ch. 6.1-4.(methods of joints and sections)
Problems:   1) 6-1 2) 6-9  3) 6-13, Please state which links are zero-force members by inspection.  4) 6-30  5) 6-39, Please state which member of the three of interest is a zero-force member by inspection.

Homework 9, due Fri. Nov. 21.
Topic: Structural analysis of mutli-rigid-body systems: frames and machines
Reading guide: Ch. 6.6
Problems:   1) 6-66 2) 6-71  3) 6-78  4) 6-101.

Homework 10, due Fri. Nov. 28.
Topic:
Reading guide: 0) 1) 2)  3)  4)  5)  6) 7)

Homework 11, due Thurs. Dec. 11.
Topic:
Reading guide: Problems:   0) 1) 2)  3)  4)  5)  6) 7)