EM 306 - Practice Final Solutions

# EM 306 - Practice Final Solutions - The University of Texas...

This preview shows pages 1–4. Sign up to view the full content.

The University of Texas at Austin EM 306 – Statics Final Exam, Spring 2007 Time: 9:00 am – 12:00 noon, Saturday, May 12 Place: GEO 2.324 Name: E I D : Unique number (circle one): 13255 13260 13265 13270 13275 13280 Closed books, notes, and homework.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
1. The cross section of a beam is shown below, which is symmetric about the y-axis. (a) Find the location of the centroid of the cross sectional area. (10) (b) Calculate the moments of inertia of the cross sectional area about the x and y axes. (10) (c) Find the polar moment of inertia about the centroid. (5) x y 4 in 1 in 6 in 1 in Answers: (a) x c = 0 and y c = 2.6 in. (b) I x = 115.3 in 4 , I y = 5.83 in 4 . (c) I c = 53.5 in 4 .
2. See figure below. The weight of the box is 20 lb, and the coefficient of static friction between the box and the floor is 0.65. Neglect the weight of the bars. (a) In term of the applied force F , find the reactions at the pin supports A and C. (10) (b) Draw a free body diagram of the box, and determine the largest value of the force

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

## This note was uploaded on 09/18/2011 for the course EM 306 taught by Professor Rodin during the Spring '07 term at University of Texas.

### Page1 / 6

EM 306 - Practice Final Solutions - The University of Texas...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online