A 350-N, uniform, 1.50-m bar is suspended horizontally by two vertical cables at each end. Cable A

Question:

A 350-N, uniform, 1.50-m bar is suspended horizontally by two vertical cables at each end. Cable A can support a maximum tension of 500.0 N without breaking, and cable B can support up to 400.0 N. You want to place a small weight on this bar.
(a) What is the heaviest weight you can put on without breaking either cable, and
(b) Where should you put this weight?