Engineering statics. Could someone explain how I would solve this? If only one can have a size of 100 KN. Is it right to just make cable AC the 100 KN force, since its angle is larger so it more of the force will be in the direction to carry weight? Thanks

 

Two cranes are used to lift two masses, M1 and M2 using a set of three cables (AC, AB, and BD) attached as shown in the figure. Cable AB is horizontal. What would be the maximum combined mass (M1+ M2) that the two cranes can lift if the maximum force that any one of the three cables AC, AB or BD can carry is 100 kN? Use g = 9.8 m/sec CATERPILLAR 45 C M1 D B 30 CATERPILLAR M2