3/60 The lumbar portion of the human spine supports theentire weight of the upper torso and the force loadimposed on it. We consider here the disk (shaded red)between the lowest vertebra of the lumbar region(L5) 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 bythis disk in terms of the body weight W. The weightW, of the upper torso (above the disk in question) is68% of the total body weight W and acts at G1. Thevertical force F which the rectus muscles of the back25 mmG1WL3L4L5G2exert on the upper torso acts as shown in the figure.(b) Repeat for the case when the person holds aweight of magnitude L W/3 as shown. State anyassumptions.Sacrum300 mm50 mm

Answered: Image /qna-images/answer/683c2130-c22a-4b96-86f6-c8c125f2de08.jpg

Answered: The lumbar portion of the human spine…

Similar questions

Chapter 12, Problem 028 GO In the figure, suppose the length L of the uniform bar is 2.7 m and its weight is 220 N. Also, let the block's weight W = 280 N and the angle 0 = 27°. The wire can withstand a maximum tension of 440 N. (a) What is the maximum possible distance x before the wire breaks? With the block placed at this maximum x, what are the (b) horizontal and (c) vertical components of the force on the bar from the hinge at A? com A (a) Number Units (b) Number Units (c) Number Units Click if you would like to Show Work for this question: Open Show Work
(Figure 1) shows a metal advertising sign of weight w suspended from the end of a horizontal rod of negligible mass and length L. The end of the rod with the sign is supported by a cable at an angle θ from the horizontal, and the other end is supported by a hinge at point P. Using the idea that there is zero net vertical force on the rod with the attached sign, find the tension in the cable. Using the idea that there is zero net horizontal force on the rod with the attached sign, find the horizontal component of the force exerted by the hinge.
A person places his hand palm downward on a scale and pushes down on the scale until it reads (8.31x10^1) N. The triceps muscle is responsible for this arm extension force. Find the force (in N) exerted by the triceps muscle. The bottom of the triceps muscle is 2.50 cm to the left of the elbow joint, and the palm is pushing at approximately 35.0 cm to the right of the elbow joint. (please ignore the number 96 shown in the scale). Give your answer with three significant figures.
Please help me
(b) In the figure below, a uniform beam of weight 500 N and length 3.0 m is suspended horizontally. On the left it is hinged to a wall; on the right it is sup- ported by a cable bolted to the wall at distance D above the beam. The least tension that will snap the cable is 1200 N. (a) What value of D corresponds to that tension? (b) To prevent the cable from snapping, should D be increased or decreased from that value? D Cable Beam
In a city park a nonuniform wooden beam 4.00 m long is suspended horizontally by a light steel cable at each end. The cable at the left-hand end makes an angle of 30.0° with the vertical and has tension 620 N. The cable at the right-hand end of the beam makes an angle of 50.0° with the vertical. As an employee of the Parks and Recreation Department, you are asked to find the weight of the beam and the location of its center of gravity.
The system in the figure is in equilibrium. A concrete block of mass 159 kg hangs from the end of the uniform strut of mass 59.2 kg. For angles p = 25.4° and 0 = 55.1°, find (a) the tension Tin the cable and the (b) horizontal and (c) vertical components of the force on the strut from the hinge. Strut T -Hinge (a) Number i Units (b) Number i Units (c) Number i Units