Alternative Exercise 11.118 Part A An 77 kg person stands on a uniform 5.0 kg ladder that is 4.0 m long, as shown in the figure(Figure 1). The floor is rough; hence, it exerts both a normal force, f1, and a frictional force, f2, on the Using the dimensions given in the figure, find the magnitudes of f1, f2, and f3. ladder. The wall, on the other hand, is frictionless; it exerts only a Express your answer using two significant figures. normal force, f3. IVO AEQ kN Figure Submit Request Answer V Part B Express your answer using two significant figures. a= 3.8 m AED f2 = b =0.70 m Submit Request