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
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
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 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 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 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