Chapter 4, Problem 4.49P

Draw isometric view of frustum of the square pyramid with 45 mm base edge, 25 mm upper edge and height 50 mm. (please also explain step by step, with all the dimensions)

One of your employees is complaining of knee pain on the R. While assessing his workstation, you noted that from a sitting position (starting position: 90 deg flexion), the employee needs to exert a lot of effort to extend his right knee to 45 deg from the starting point. The length of the limb (from the tibial tuberosity to the heel area) is measured to be 38 cm. What now is the linear distance traveled by the limb from the initial position to 45 degrees of knee extension?

What is the shape factor F12 for the situation shown in Fig. 1 below ?