A cat runs along a straight line (the x-axis) from point A to point B to point C, as shown in Fig. 2.1. The distance between points A and C is 5.00 m, the distance between points B and C is 10.0 m, and the positive direction of the x-axis points to the right. The time to run from A to B is 20.0 s, and the time from B to C is 8.00 s.