physics Two muscles in the back of the leg pull upward on the Achilles tendon, as...
Two muscles at the back of your leg, called lateral and medial heads of the gastrocnemius muscle, exert forces L and M respectively, on the Achilles tendon (Figure 3-31). The forces are measured in Newtons, N. Use components to determine the resultant force on the tendon. 2.4 x 102 N 2.4 X 102 N Figure 3-31 Question 3-32.
Two muscles at the back of your leg called lateral and medial heads of the gastrocnemius muscle, exert forces L and M respectively, on the Achilles’ tendon (figure 3-31). The forces are measured in Newton’s, N. use opponents to determine the resultant force on the tendon 2.4 x 102N 2.4 X 102 N te Figure 3-31 Question 3-32
The Achilles tendon is located on the back of the ankle as far as possible from the ankle joint (6 cm) to give the calf muscles (gastrocnemius and soleus) the maximum advantage lifting the body. Assume a 98 kg basketball player (weight of 961 N) with a foot length of 30 cm is jumping from the right foot with only the ball of the foot in contact with the floor. a) Assuming static equilibrium, how much muscle force (G) in...
PROBLEM 2 Knee Extension - The angular motion of the lower leg about the knee joint, and the forces and torques produced by the muscles crossing the knee joint during knee flexions and extensions have been investigated by a number of researchers utilizing different experimental techniques. One of these techniques is discussed here. Consider the person illustrated in Fig. 10.12. The test subject is sitting on a table, with the back placed against a back rest and the lower legs...
To understand the two most common procedures for finding torques when the forces and displacements are all in one plane: the moment arm method and the tangential force method. The purpose of this problem is to give you further practice finding torques in two-dimensional situations. In this case it is overkill to use the full cross product definition of the torque because the only nonzero component of the torque is the component perpendicular to the plane containing the problem. There...