Halliday, Resnick & Walker — Fluids: Problem Problem_38

A small solid ball is released from rest while fully submerged in a liquid and then its kinetic energy is measured when it has moved 4.0 cm in the liquid. Figure 14.20 gives the results after many liquids are used: The kinetic energy \( K \) is plotted versus the liquid density \( \rho_{\text{liq}} \), and \( K_s = 1.60 \text{ J} \) sets the scale on the vertical axis. What are (a) the density and (b) the volume of the ball?