Halliday, Resnick & Walker — Kinetic Energy and Work: Problem 6

6 A bead with mass \(1.8 \times 10^{-2} \text{ kg}\) is moving along a wire in the positive direction of an x axis. Beginning at time \(t = 0\), when the bead passes through \(x = 0\) with speed \(12 \text{ m/s}\), a constant force acts on the bead. Figure 7-17 indicates the bead’s position at these four times: \(t_0 = 0\), \(t_1 = 1.0 \text{ s}\), \(t_2 = 2.0 \text{ s}\), and \(t_3 = 3.0 \text{ s}\). The bead momentarily stops at \(t = 3.0 \text{ s}\). What is the kinetic energy of the bead at \(t = 10 \text{ s}\)?