Using the data provided in the text, calculate the maximum weight that the arm can support in the position shown in Fig. 1.12. Bone Muscle 100 30 cm 4 cm 40 cm (a) (b) FIGURE 1.12 (a) Weight held in hand. (b) A simplified drawing of (a). position as a Class 3 lever, as shown in Fig. 1.13. The x- and y-axes are as shown in Fig. 1.13. The direction of the reaction force F, shown is a guess. The exact answer will be provided by the calculations.