The figure shows a plot of the force on a 6.0 kg particle versus the position of the particle along an x axis. The particle moves rightward along the axis. At x = 0, the particle has a kinetic energy of 14 J. What is the particle's speed (m/s) at x = 12 m? 17 2.4 16 2.8 5.0 4.0 3.5 9.0 8.8 4.6