Mechanical and Aerospace Engineering Department
School of Engineering and Applied Science
University of California, Los Angeles
MAE 101: Statics and Strength of Materials
Fall 2014
Homework Assignment 1
Due: Friday October 17, 2014
Problem 1
The suspended
MAE 101 - Statics and Strength of Materials
Discussion 1B
Fall 2014
Kevin Wood
WEEK 2 - Ch. 3 Forces & Ch. 4 Systems of Forces and Moments
Problem 1
cos x = 0.707, cos y = 0.619, cos z =
What are the tensions in the upper and lower 0.342. What total momen
MAE 101.
Midterm Examination #1 -
October 28, 2015
Instructor: Professor Gupta
TA: Carlos Gamez and Ryan Crum
DO ALL WORK ON THE EXAM ‘
ATTTACH ADDITIONAL SHEETS AS NEEDED
WRITE YOUR NAME ON EVERY SHEET YOU USE
NOTE: ALL EQUA’HGNS 0E EQUELIBRIUM MUST HAVE
Mechanical and Aerospace Engineering Department
School of Engineering and Applied Science
University of California, Los Angeles
MAE 101: Statics and Strength of Materials
Fall 2014
Homework Assignment 2 Solutions
Problem 1 (15 pts)
Two tow trucks lift a m
Mechanical and Aerospace Engineering Department
School of Engineering and Applied Science
University of California, Los Angeles
MAE 101: Statics and Strength of Materials
Fall 2014
Homework Assignment 1 Solutions
Problem 1 (10 points)
The suspended weight
Mechanical and Aerospace Engineering Department
School of Engineering and Applied Science
University of California, Los Angeles
MAE 101: Statics and Strength of Materials
Fall 2014
Homework Assignment 9
Due: December 12, 2014
Problem 1 (15 pts)
Determine
Mechanical and Aerospace Engineering Department
School of Engineering and Applied Science
University of California, Los Angeles
MAE 101: Statics and Strength of Materials
Fall 2014
Homework Assignment 3
Due: October 31, 2014
Problem 1 (15 pts)
If the forc
Mechanical and Aerospace Engineering Department
School of Engineering and Applied Science
University of California, Los Angeles
MAE 101: Statics and Strength of Materials
Fall 2014
Homework Assignment 1
Due: Friday October 17, 2014
Problem 1
The suspended
MAE 101: Statics and Strength of Materials
Fall 2015 - Prof. Gupta
Homework Assignment 5 Solutions
Problem 1 (7.29)
Determine the coordinates of the centroid.
Divide the shape up into a rectangle, a semicircle, and a circular cutout as shown. Note
that th
MAE 101: Statics and Strength of Materials
Fall 2015 - Prof. Gupta
Homework Assignment 4 Solutions
Problem 1 (8.24)
Suppose that you want the bar of length L to act as a simple brake that will allow the
workpiece A to slide to the left but will not allow
MAE 101: Statics and Strength of Materials
Fall 2015 - Prof. Gupta
Homework Assignment 3 Solutions
Problem 1 (6.9)
The truss shown is part of an airplanes internal structure. Determine the axial forces in
members BC, BD, and BE.
First, solve for the suppo
MAE 101: Statics and Strength of Materials
Fall 2015 - Prof. Gupta
Homework Assignment 1 Solutions
Problem 1
Two tow trucks lift a motorcycle out of a ravine following an accident. If the 100-kg motorcycle is in equilibrium in the position shown, what are
MAE 101: Statics and Strength of Materials
Fall 2015 - Prof. Gupta
Homework Assignment 2 Solutions
Problem 1 (5.15)
If the structural designer determines that the magnitude of the force exerted on the support
A by the beam must not exceed 80 kN, and the m
Mechanical and Aerospace Engineering Department
School of Engineering and Applied Science
University of California, Los Angeles
MAE 101: Statics and Strength of Materials
Fall 2014
Homework Assignment 4
Due: November 7, 2014
Problem 1 (15 pts)
The truss s
MAE 101
Statics and Strength of Materials
Giacomo Po
Department of Mechanical and Aerospace Engineering
University of California, Los Angeles
Lecture 3
October 13, 2014
Outline of the lecture
1
Forces (Ch 3.)
Equilibrium of forces (examples)
2
Moment of f
MAE 101 - Statics and Strength of Materials
Discussion 1B
WEEK 6 - Ch. 7 Centroids and Moments of Inertia &
Ch. 9, 10, 12 Stresses
Problem 1
Determine Iy and Ixy .
Problem 4
The cross-sectional area of the prismatic bar
is A = 2 in2 and the axial force P
MAE 101 - Statics and Strength of Materials
Discussion 1B
WEEK 3 - Ch. 5 Objects in Equilibrium
Problem 1
Determine the reactions at the support.
Problem 4
The suspended load exerts a force F = 600 lb
at A, and the weight of the bar OA is negligible. Dete
MAE 101 - Statics and Strength of Materials
Discussion 1B
WEEK 9 - Ch. 14 Internal Forces and Moments in Beams &
Ch. 15 Axial Stress in Beams
Problem 1
Given the following beam below:
Find the following:
(a) Reaction forces
(b) Shear and bending moment di
Mechanical and Aerospace Engineering Department
School of Engineering and Applied Science
University of California, Los Angeles
MAE 101: Statics and Strength of Materials
Fall 2014
Homework Assignment 2
Due: October 24, 2014
Problem 1
Two tow trucks lift
Problem 1.1 Express the fractions
signicant digits.
1
3
and
2
3
to three
Solution:
1/3 = 0.3333. . = 0.333
2/3 = 0.6666. . = 0.667
Problem 1.2 What is the value of e (the base of the
natural logarithms) to ve signicant digits?
Solution:
The value of e is
Problem 8.26 The masses of the ladder and person
are 18 kg and 90 kg. respectively. The center of mass
of the 4—111 ladder is at its midpoint. lf 0: = 300, what
is the minimum coefﬁcient of static friction between the
ladder and the ﬂoor necessary for the
Problem 9.12 Figure (a) is a diagram of the bones and
biceps muscle of a person’s arm supporting a mass. Fig-
ure (b) is a biomedical model of the arm in which the
biceps muscle AB is represented by a bar with pin sup-
ports. The suspended mass is m = 2 k
MAE-101: Spring, 2015: Chatterjee, A.
Homework No. 2
Due Friday, April 17th, Discussion Class
Answer: 2.4m
Answers
(a)
(b)
M
B
=0
Answer
Answer
Answer
Answer:
x = 0, z = 9.333m
Answers:
Answers
(a )Ay = 685.7 lbf, B y = 1714.3 lbf
(b )Ay = 828.6 lbf, B y