Consider two thin bars of constant cross-sectional area, each of length 10 cm, with respective mass linear-density functions p(x) = and 8(x) = 0.12 k 1+z² k, and a (a) Interpret what it means for a bar to have mass linear-density p(x) = bar to have mass linear-density 6(x) = 0.1z ka (b) Find the mass of each bar. (c) Explain why zp(2) dr represents the total moment of mass for the first bar.

Consider two thin bars of constant cross-sectional area, each of length 10 cm, with respective mass linear-density functions p(x) = and 8(x) = 0.12 k 1+z² k, and a (a) Interpret what it means for a bar to have mass linear-density p(x) = bar to have mass linear-density 6(x) = 0.1z ka (b) Find the mass of each bar. (c) Explain why zp(2) dr represents the total moment of mass for the first bar.