Exercise 4Consider the position of the head and neck as well as forces acting on the head shown below. For thisequilibrium condition assume that the forces involved form a concurrent force system. Point C is thecenter of gravity of the head, A is the point of application of force (FM) exerted by the neck extensormuscles on the head, and point B is the center of rotation of the atlantooccipital joint. For this positionof the head, it is estimated that the magnitude of the resultant force exerted by the neck extensormuscles is FM = 57N,and the lines of action of the muscles and the joint reaction forces make an anglee = 36° and Bmagnitude of the gravitational force acting on the head.= 63° with the horizontal, respectively. Using the force triangle method, determine theFMW

Given that: FM=57 Nθ=36°β=63°

Answered: Consider the position of the head and…

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