The human foot uses a combination of forces from bones, ligaments, and muscles. Examine a simple mechanical model in equilibrium below, with only 3 forces, T, B, and N. The length of the foot is f. Assume that the tension, T, from the Achilles tendon is pulling on the back of the foot at point from the rotation axis of the ankle. If the person weighs 600 N (135 lb), a is 70, and 3 is 60, what is the tension in the Achilles tendon? Assume that the x-axis is along the base of the foot. Also, calculate the magnitude of the force exerted by bones in the lower leg, B BA Human Foot rotation -axis of ankle N B