Professor Newton decided to hang a physics sign above the door of his lab. Two wires of equal length attached to a heavy uniform rod hang vertically as shown in the picture below. The sign of negligible mass is attached to
the 4.3 kg horizontal rod of length r. The wire on the left (T) is attached to the end of the rod. The wire on the
right (T2) is attached at a distance of 24 cm from the right end of the rod. The length of the rod is 68 cm.