3/60 The lumbar portion of the human spine supports the entire weight of the upper torso and the force load imposed on it. We consider here the disk (shaded red) between the lowest vertebra of the lumbar region (L) and the uppermost vertebra of the sacrum re- gion. (a) For the case L = 0, determine the com- pressive force C and the shear force S supported by this disk in terms of the body weight W. The weight W of the upper torso (above the disk in question) is 68% of the total body weight W and acts at G. The vertical force F which the rectus muscles of the back 25 mm G1 L3 LA L5 G2 exert on the upper torso acts as shown in the figure. (b) Repeat for the case when the person holds a weight of magnitude L W/3 as shown. State any assumptions. Sacrum 300 mm 50 mm

3/60 The lumbar portion of the human spine supports the entire weight of the upper torso and the force load imposed on it. We consider here the disk (shaded red) between the lowest vertebra of the lumbar region (L) and the uppermost vertebra of the sacrum re- gion. (a) For the case L = 0, determine the com- pressive force C and the shear force S supported by this disk in terms of the body weight W. The weight W of the upper torso (above the disk in question) is 68% of the total body weight W and acts at G. The vertical force F which the rectus muscles of the back 25 mm G1 L3 LA L5 G2 exert on the upper torso acts as shown in the figure. (b) Repeat for the case when the person holds a weight of magnitude L W/3 as shown. State any assumptions. Sacrum 300 mm 50 mm

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Related questions

Q: Solve the statics problem shown here by calculating the X-direction and Y-direction forces at points…

Q: The lumbar portion of the human spine supports the entire weight of the upper torso and the force…

A: Make the FBD for the given question.

Q: A lunch tray is being held in one hand, as the figure illustrates. The mass of the tray itself is…

Q: Answer FOUR questions ONLY selecting TWO questions from SECTION A. 1. (a) The vertical structure…

A: Find the reaction at point A and stress in steel bar and aluminium tube.

Q: The frame in the figure is a counter-balance scale used for decades to offer products. Calculate the…

A: Given data, The distance of EFG is 350 mm. Value of b= 200 mm x varies from 10 mm to 400 mm. Mass of…

Q: It is required to climb a cylinder one step, rolling without slipping; Said cylinder has a weight W…

Q: 6. 2) The uniform slender 14-kg bar of length /= 3.2 m rests on smooth surfaces but starts to slide…

A: To find: The normal force at point A. Given: The mass of the slender bar is m=14 kg. The length of…

Q: The system shown consists of 3 cables. For example; cable C12 joins points 1 and 2. The coordinates…

A: The system shown consists of 3 cables. For example; cable C12 joins points 1 and 2. The coordinates…

Q: P₁ = 50 kg Si Sin At RA P = 100 kg 2 V₁ 81 951. aus B₁ A2 D1 B2 P = 100 kg Sin 30 EV V2 t D A3 D2 B3…

Q: (a) Revisit the problem and solve for the cable forces TAD, TAC, and reaction force components O Oy,…

A: To find-: a) The cable tensions and reaction forces at O. b) The moment of tension TAc along line…

Q: A sandwich board advertising sign is constructed as shown in the figure below. Hinge- 0.50m Chain…

A: Given Data: m=7.2 kg To Find: (a) The tension in the chain. (b) Force exerted by each side on the…

Q: The bar AC is supported by a joint at A and a pin B that is free to slide in the same direction…

A: Given; Length, L1 = 2.7 m Length, L2 = 1.7 m Angle, α = 13o Angle, θ = 25o The force, P = 68 kN

Q: The arm in the figure below weighs 37.6 N. The force of gravity acting on the arm acts through point…

A: The weight of the arms act at A. Taking the moment of the forces about point O,

Q: For the spring assemblage shown below, determine the displacement at node 2 and the forces in each…

A: Given: = 12.5mm = 0.0125m k1=k2= 175 kN/m = 175000N/mBoth springs are in series. So the…

Q: The arm in the figure below weighs 38.0 N. The force of gravity acting on the arm acts through point…

Q: 5. The bent rod of negligible weight is supported by a ball-and-socket joint at A and a single…

Q: With the elbow flexed 30 degrees, the moment arm of the biceps is equal to 10 mm. Solve for the…

Q: The bar below is 8 meters long and has a 37° 'F=500N negligible mass Three external forces act on it…

Q: Three hydraulic cylinders control the motion of the backhoe arm and bucket in the given figure. In…

Q: F, b Fig-3

A: The representation of the forces is:

Q: Let F₁ and F₂ be the centrifugal forces at maximum and minimum radii of rotation 1₁ and 12…

A: To Find : The stiffness of spring used in governor. Given : The radius of governor are The…

Q: the vector approach determine: a) the moment about point “B", b) the moment about point “A", and c)…

A: Given: To determine: Moment about B Moment about A Moment about O

Q: A 10m light rod AB is horizontally placed. One end of this rod is pin supported at point A, and the…

Q: The lumbar portion of the human spine supports the entire weight of the upper torso and the force…

A: (a) When the value of L is zero, the free body diagram of the given problem can be drawn as below,

Concept explainers

Forming and Shaping

Metal forming is a category of metalworking process through which the material can be given the desired shape and size by subjecting it to plastic deformation, where the component undergoes bulk deformation process upon application of loads. Unlike the shearing and machining process, the material does not undergo up to a failure point as indicated in the stress-strain curve. Hence, the stresses induced during the forming process are greater than yield strength but less than the failure strength of the material. The process does not lead to the loss of material, so it can be said to be an economical process. During forming, the material is subjected to tensile forces, compressive forces, bending, and shearing loading conditions. The material should possess the property of ductility to undergo the forming process.

Question

3/60 The lumbar portion of the human spine supports the
entire weight of the upper torso and the force load
imposed on it. We consider here the disk (shaded red)
between the lowest vertebra of the lumbar region
(L) and the uppermost vertebra of the sacrum re-
gion. (a) For the case L = 0, determine the com-
pressive force C and the shear force S supported by
this disk in terms of the body weight W. The weight
W of the upper torso (above the disk in question) is
68% of the total body weight W and acts at G. The
vertical force F which the rectus muscles of the back
25 mm
G1
"M
La
LA
L5
G2
exert on the upper torso acts as shown in the figure.
(b) Repeat for the case when the person holds a
weight of magnitude L W/3 as shown. State any
assumptions.
Sacrum
300 mm
50 mm

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

A force of 1000 lb is applied to the 600-lb horizontal beam supported by a hinge at A and a roller at B on a smooth surface. If the pin support at A suddenly fails, calculate the magnitude of the force of the roller at B acting on the beam at that instant, by modelling the beam as a uniform slender bar. Present your answer in lb using 3 significant figures. 4 13 1000 lb -8 ft- B -2 ft-
The linkage shown is used in a vehicle suspension system. Find the forces indicated below when a static force of F = 820 lb is applied to the tire at point C at an angle of 0 = 22° as shown. Assume the connection of the wheel to member AB is rigid. hs hy hi F BY NC SA W4. W, Ws 2013 Michael Swanbom Values for dimensions on the figure are given in the following table. Note the figure may not be to scale. Variable Value Variable Value hi 10 in Wi 8.8 in h2 15.6 in W2 5.6 in h3 18.1 in W3 10.8 in h4 10.9 in WĄ 7.4 in h5 4.9 in W5 9.3 in For all answers, take x as positive to the right and y as positive upward. At point B, member AB exerts a force of B = j lbs on member BHE. At point A, member AD exerts a force of A + j lbs on member AB. At point H, shock GH exerts a force of H = i + i lbs on member ВНЕ. At point E, the magnitude of the force exerted on the car body by member BHE is lbs. At point D, the magnitude of the force exerted on the car body by member AD is lbs. At point G, the…
Th lamp , mass = 10 Kg, is suspended in the position shown. The undeformed length of spring AB is 0.84 m and the spring has a stiffness of K = 784 N/m. For L= 2.8 m find Tension in cable AC , Internal force in spring AB, length of AC
The linkage shown is used in a vehicle suspension system. Find the forces indicated below when a static force of F = 1000 lb is applied to the tire at point C at an angle of 0 = 17° as shown. Assume the connection of the wheel to member AB is rigid. 1 h₁ K: LOFF 0 W₁ h₂ h3 h4 h5 B W₁₂ AXHIMAL W4 hs: h₂ cc i❀O BY NC SA 2013 Michael Swanbom W3 - W₁ Values for dimensions on the figure are given in the following table. Note the figure may not be to scale. Variable Value Variable Value h₁ 6.6 in W1 7.5 in 16.6 in W2 4.6 in 14.6 in W3 8.3 in 10.2 in W4 6.2 in 5.2 in W5 9.7 in
I just need the last problem at the bottom of the picture. When I submit the last problem by itself my question gets rejected because the value of the mass is required so I assume that you are supposed to refer to the previous problems to see that M=100Nm.