Two wires support a beam of length L=20 m and mass 330 kg as shown in the figure above. A box of mass 220 kg hangs from a wire which hangs from the beam a distance x=15 m away from the left edge of the beam. What is the tension in the RIGHT support wire? (in N) I just did an (at least I thought...) similar problem to this, and got the answer correct. For the life of me, I don't know why this would be different. This is what I've been doing.. center of beam = 0 m, so 10 m*(330/2 kg * 9.81) + 5 m*(220 kg * 9.81) = 10 m* x N the only difference is that the weight of the beam wasn't given in the question I got correct, and I was solving for the weight of box. why would this be different?