일반물리학 1 — Center of Mass and Linear Momentum: Problem 4

4 In Fig. 9-26, three uniform thin rods, each of length \( L = 24 \text{ cm} \), form an inverted U. The vertical rods each have a mass of \( 14 \text{ g} \); the horizontal rod has a mass of \( 42 \text{ g} \). What are (a) the \( x \) coordinate and (b) the \( y \) coordinate of the system’s center of mass?