Halliday, Resnick & Walker — Rotation: Problem Problem_36

Figure 10.15a shows a disk that can rotate about an axis at a radial distance \( h \) from the center of the disk. Figure 10.15b gives the rotational inertia \( I \) of the disk about the axis as a function of that distance \( h \), from the center out to the edge of the disk. The scale on the \( I \) axis is set by \( I_A = 0.050 \text{ kg} \cdot \text{m}^2 \) and \( I_B = 0.150 \text{ kg} \cdot \text{m}^2 \). What is the mass of the disk?