일반물리학 1 — Center of Mass and Linear Momentum: Problem 3

3 Figure 9-25 shows a slab with dimensions $d_1 = 11.0 \text{ cm}$, $d_2 = 2.80 \text{ cm}$, and $d_3 = 13.0 \text{ cm}$. Half the slab consists of aluminum (density $\rho_{Al} = 2.70 \text{ g/cm}^3$) and half consists of iron (density $\rho_{Fe} = 7.85 \text{ g/cm}^3$). What are (a) the x coordinate, (b) the y coordinate, and (c) the z coordinate of the slab’s center of mass?