i am not getting why you are
supposed to use cosine in this problem. please clarify...
27. Two mus pull on the Achilles tendon as shown in Figure 9.37. What total force do they exert? cles in the back of the leg F2(200 N F,(200 N) 20% 20° Figure 9.37 The Achilles tendon of the posterior leg serves to attach plantaris, gastrocnemius, and soleus muscles to calcaneus bone.