v PartA A uniform, aluminum beam 9.00 m long, weighting 300 N, rests symmetrically on two supports 5.00 m apart. A boy . ) i . . weighing 600 N starts at point A and walks toward the Choose the right diagram showing the upward forces F'y and F'p exerted on the beam at points A and B, as functions of the right. (Eigure 1) coordinate x of the boy. x(m) Figure 10f1 x(m) -200 x (m) A plot of forces exerted on the beam versus position of the boy, the force from the left supp force from the right support linearly decreases from a positive value. A uniform, aluminum beam 9.00 m long, weighting 300 N, rests symmetrically on two supports 5.00 m apart. A boy weighing 600 N starts at point A and walks toward the 1000 right. (Figure 1) 800 600 O 400 FA 200 FB 0 -200 - x (m) 0 1 2 3 4 5 6 F(N) 1000 800 600 O 400 200 0 -200 x (m) 0 1 2 3 4 5 6v PartB How far beyond point B can the boy walk before the beam tips? Express your answer with the appropriate units. mc')? 1=| Value Units Request Answer v PartC Figure 10f 1 a How far from the right end of the beam should support B be placed so that the boy can walk just to the end of the beam without causing it to tip? Express your answer with the appropriate units. kr Bl - o Request