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

A bead with mass \( 1.8 \times 10^{-2} \) 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 \( 12 \) m/s, a constant force acts on the bead. Figure 7.9 indicates the bead’s position at these four times: \( t_0 = 0, t_1 = 1.0 \) s, \( t_2 = 2.0 \) s, and \( t_3 = 3.0 \) s. The bead momentarily stops at \( t = 3.0 \) s. What is the kinetic energy of the bead at \( t = 10 \) s?