A clipper of a robot arm can be modeled as a half-circle curved beam as shown in figure. This beam is subjected to a horizontal force F and vertical force N. The radius of the curve can vary between 0.6 m and 1.5 m. By considering an arbitrary value for the radius in the interval (0.6 r 1.5), determine the maximum allowed values for F and N if the maximum allowed bending moment and shear force in the beam are 100 N.m and 80 N, respectively. (Consider a relation between N and F, e.g. F=2N) (20 marks) N F