(Solved): Using the material Balsa wood which has density of 150kg/m3, show calculation if the above diagram ...

Using the material Balsa wood which has density of 150kg/m3, show calculation if the above diagram can support the loaded weight of 7 kg, 8kg and 4 kg at each point. If so calculate the forces that it can withstand at each point 42 away, 84cm from point A being the right support and 56 cm away from point B being left support of the trussell.