Design a 2D bridge with the followingcharacteristic: The length of the bridge is 8m. The point A of the bridge (left) is arevolute joint, the point B (right) is a

roller joint. The bridge must hold a concentrated downward force of 10OON. Each bar has a length from 2m to 4m. All lengths in between 2mand 4m are acceptable. Each bar must not exceed more than 1200N in tension or compression. You must justify and show (with method of section or joint) that your bridge respect these specification, in particular the tension or compression within the bars. You may be imaginative, but the simpler, the better.