three uniform thin rods, each of length L = 45 cm, form an inverted U. The vertical rods each have a mass of 19 g; the horizontal rod has a mass of...

three uniform thin rods, each of length L = 45 cm, form an inverted U. The vertical rods each have a mass of 19 g; the horizontal rod has a mass of 42 g. What are (a) the x coordinate and (b) the y coordinate of the system's center of mass