9. Solve the following: a) A beam supports a distributed load as shown. Determine the equivalent concentrated load a reactions at supports. WA is 2000 N/m and We is 4850 N/m. Fig.4 [10] WB= 4850 N/m WA 2000 N/m B L = 8m Fig.4 b) Locate the centroid of the plane area shown fig 5: [10] 10 in =/15 in. 20 in - 20 in Fig. 5