Four distinct spherical balls are connected by a glass rod (negligible mass) in the shape of a rectangle. The spherical balls are located at the vertices of the rectangle as shown in the figure. Determine the coordinates of the center of mass for this configuration.

• A. x_cm = 0.09 m , y_cm = 0.027 m
• B. x_cm = 0.032 m , y_cm = 0.088 m
• C. x_cm = 0.055 m , y_cm = 0.027 m
• D. x_cm = 0.055 m , y_cm = 0.052 m

Answer: (C)