The design of the part shown in Fig. 1 is being modified so that the radius of the groove...

The design of the part shown in Fig. 1 is being modified so that the radius of the groove is changed from 1.2 in. to 0. 6 in. For a factor of safety of 4, find the largest total force P that the part can carry if the material is Class 30 cast iron.

Figure 1