Solution Found!

Engineering and Tech / Engineering Mechanics: Statics 14 / Chapter 4 / Problem 4-107

Engineering Mechanics: Statics | 14th Edition | ISBN: 9780133918922 | Authors: Russell C. Hibbeler

Change Question

Answer: A biomechanical model of the lumbar region of the

Chapter 4, Problem 4-107

(choose chapter or problem)

Get Unlimited Answers

QUESTION:

A biomechanical model of the lumbar region of the human trunk is shown. The forces acting in the four muscle groups consist of \(F_R = 35\ N\) for the rectus, \(F_O = 45\ N\) for the oblique, \(F_L = 23\ N\) for the lumbar latissimus dorsi, and \(F_E = 32\ N\) for the erector spinae. These loadings are symmetric with respect to the y–z plane. Replace this system of parallel forces by an equivalent force and couple moment acting at the spine, point O. Express the results in Cartesian vector form.

Questions & Answers

QUESTION:

A biomechanical model of the lumbar region of the human trunk is shown. The forces acting in the four muscle groups consist of \(F_R = 35\ N\) for the rectus, \(F_O = 45\ N\) for the oblique, \(F_L = 23\ N\) for the lumbar latissimus dorsi, and \(F_E = 32\ N\) for the erector spinae. These loadings are symmetric with respect to the y–z plane. Replace this system of parallel forces by an equivalent force and couple moment acting at the spine, point O. Express the results in Cartesian vector form.

ANSWER:

Step 1 of 2

First, sum the forces together to get a resultant force.

Study Tools You Might Need

Chapter: 2 Problem: 32P

An Introduction to Thermal Physics 1
Problem 32P Find an expression for the entropy of the two-dimensional ideal gas considered in below Problem. Express your result in terms of U, A, and N. Problem: Consider an ideal monatomic gas that lives in a two-dimensional universe (flatland), occupying an area A instead of a volume V. By followi

Chapter: 6 Problem: 94GP

Physics with MasteringPhysics 4
Problem 94GP Playing a Violin The tension in a violin string is 2.7 N. When pushed down against the neck of the violin, the string makes an angle of 4.1 with the horizontal. (a) With what force must you push down on the string to bring it into contact with the neck? (b) If the angle were less than 4.

Chapter: 7 Problem: 12

Elementary Statistics 12
Problem 12BSC Finding Confidence Intervals. , Assume that each sample is a simple random sample obtained from a population with a normal distribution. Pulse Rates of Men and Women Data Set 1 in Appendix B includes 40 pulse rates of men, and those pulse rates have a mean of 67.3 beats per minute and

Chapter: 1 Problem: 1.39

Chemistry 12
Carry out the following conversions: (a) 22.6 m to decimeters, (b) 25.4 mg to kilograms, (c) 556 mL to liters, (d) 10.6 kg/m3 to g/cm3 .

Chapter: 0 Problem: 7.2

Biology 8
Aquaporins exclude passage of hydronium ions (H30+). But recent research has revealed a role for some aquaporins in fat metabolism, in which they allow passage of glycerol, a three-carbon alcohol (see Figure 5.11), as well as H20. Since H30+ is much closer in size to water than is glycerol, what do y

Chapter: 19 Problem: 2

Campbell Biology 10
Emerging viruses arise by a. mutation of existing viruses. b. the spread of existing viruses to new host species. c. the spread of existing viruses more widely within their host species. d. all of the above.

Chapter: 2 Problem: 2-4

Glencoe Accounting: First Year Course, Student Edition 1
Identifying Types of Businesses Instructions In your working papers, indicate whether each of the following businesses is a service business, a merchandising business, or a manufacturing business. 1. International Business Machines (IBM) 2. Gap 3. Glendale Memorial Hospital 4. Avis Ren

Chapter: 2 Problem: 2

Concepts of Biology 1
Magnesium has an atomic number of 12. Which of the following statements is true of a neutral magnesium atom? a. It has 12 protons, 12 electrons, and 12 neutrons. b. It has 12 protons, 12 electrons, and six neutrons. c. It has six protons, six electrons, and no neutrons. d. It has six protons, six ele

Not The Solution You Need? Search for Your Answer Here:

×

Login

Login or Sign up for access to all of our study tools and educational content!

×

Register

Sign up for access to all content on our site!

Or login if you already have an account