FIGURE 8-12 a 2-Kg Mass Is Moving Along the X

Multiple Choice

FIGURE 8-12 A 2-kg mass is moving along the x axis. The potential energy curve as a function of position is shown in Figure 8-12. The system is conservative. There is no friction.
-Refer to Figure 8-12. If the object is at rest at the origin, what will be its speed at 9.0 m along the +x-axis?

A) 1.5 m/s
B) 2.5 m/s
C) 3.5 m/s
D) 4.5 m/s
E) 5.5 m/s