Acurved hook has a circular cross-section of radius 1-in and is made of 1040cd steel. the distance of the centroidal axis from the axis of curvature is 3-in. a repeated force is applied to the hook which causes the bending moment at a cross-section to vary between 0and 10 kip-in. calculate the safety factor at the inner-most pointon the cross-sectionforinfinitelife. ignore the effect of normal internal reactions due to the load on the hook. a reliability of 50% is required from the estimate of safety factor. assume the surface of the hook is commercially polished.