2. (4 pts) When leaning forward, the weight of the head (F) is supported by muscle...

 

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2. (4 pts) When leaning forward, the weight of the head (F) is supported by muscle tension in the neck (FM) and balanced by a force supplied by the upper vertebrae (F.). The weight is 50 N and the muscle tension is 60 N. The image at right shows the forces and below that is a simplified force diagram for the scenario. We know that if the head is not accelerating, then XF, -0 and EF, = 0. Solve for the force provided by the vertebrae, both the numerical value of the force (F.) and the angle (0). w-50 N Fo 33 2. (4 pts) When leaning forward, the weight of the head (F) is supported by muscle tension in the neck (FM) and balanced by a force supplied by the upper vertebrae (F.). The weight is 50 N and the muscle tension is 60 N. The image at right shows the forces and below that is a simplified force diagram for the scenario. We know that if the head is not accelerating, then XF, -0 and EF, = 0. Solve for the force provided by the vertebrae, both the numerical value of the force (F.) and the angle (0). w-50 N Fo 33