Figure 12-31 shows the anatomical structures in the lower leg and foot that are involved
Chapter 12, Problem 13(choose chapter or problem)
Figure 12-31 shows the anatomical structures in the lower leg and foot that are involved in standing on tiptoe, with the heel raised slightly off the floor so that the foot effectively contacts the floor only at point P. Assume distance a = 5.0 cm, distance b = 15 cm, and the person’s weight W = 900 N. Of the forces acting on the foot, what are the
(a) magnitude and
(b) direction (up or down) of the force at point A from the calf muscle and the
(c) magnitude and
(d) direction (up or down) of the force at point B from the lower leg bones?
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