5. A sculpture consists of 4 small balls connected by negligible mass rods. The coordinates (in cm) of the balls are shown here. The masses of the m3 (0, 17) m4 (13, 17) balls are m1=1 kg, m2 = 2 kg, m3 = 3 kg, and m4 = 4 kg. a. Find the location of the sculpture's center of gravity. b. Find the moment of inertia of the sculpture if the axis of rotation is the line connecting m1 and m2. m1 (0,0) m2 (20, 0) c. Find moment of inertia if the axis of rotation is through m4 and parallel to the rod connecting m1 and m3