Question 3) The position of the head and neck and the forces acting on the head are shown in the figure. The center of gravity of the head of mass m=8 kg is located at point C. Neck muscle strength of FM=130 N, which makes an angle of γ=65° with the vertical from the B point to the skull, is affected by the neck extensor muscles. The center of the atlantooccipital joint is located at point B. For this flexion position of the head, the FJ joint reaction force, which makes an α angle with the horizontal from point A, acts. (Take the gravitational acceleration g as 9.81 m/s2). Accordingly; a) Calculate the angle α of the FJ joint reaction force with the horizontal. Response b) Calculate the FJ joint reaction force. (Write your result in N.) Answer
Question 3) The position of the head and neck and the forces acting on the head are shown in the figure. The center of gravity of the head of mass m=8 kg is located at point C. Neck muscle strength of FM=130 N, which makes an angle of γ=65° with the vertical from the B point to the skull, is affected by the neck extensor muscles. The center of the atlantooccipital joint is located at point B. For this flexion position of the head, the FJ joint reaction force, which makes an α angle with the horizontal from point A, acts. (Take the gravitational acceleration g as 9.81 m/s2). Accordingly; a) Calculate the angle α of the FJ joint reaction force with the horizontal. Response b) Calculate the FJ joint reaction force. (Write your result in N.) Answer
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
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Question 3) The position of the head and neck and the forces acting on the head are shown in the figure. The center of gravity of the head of mass m=8 kg is located at point C. Neck muscle strength of FM=130 N, which makes an angle of γ=65° with the vertical from the B point to the skull, is affected by the neck extensor muscles. The center of the atlantooccipital joint is located at point B. For this flexion position of the head, the FJ joint reaction force, which makes an α angle with the horizontal from point A, acts. (Take the gravitational acceleration g as 9.81 m/s2). Accordingly;
a) Calculate the angle α of the FJ joint reaction force with the horizontal. Response
b) Calculate the FJ joint reaction force. (Write your result in N.) Answer
Transcribed Image Text:C*
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