Question
A 75-kg man stands on his toes by exerting an upward force through the Achilles tendon, as in Figure 9.41. (a) What is the force in the Achilles tendon if he stands on one foot? (b) Calculate the force at the pivot of the simplified lever system shown—that force is representative of forces in the ankle joint.
Question Image

a) $2210 \textrm{ N}$

b) $2940 \textrm{ N, downward}$

Solution Video