FIGURE 2-11
-Fig. 2-11 represents the position of a particle as it travels along the x-axis. What is the average speed of the particle between t = 1 s and t = 4 s?
A)1.0 m/s
B)1.3 m/s
C)0.67 m/s
D)0.50 m/s
E)0.25 m/s

Question

FIGURE 2-11 
-Fig. 2-11 represents the position of a particle as it travels along the x-axis. What is the average speed of the particle between t = 1 s and t = 4 s?
A)1.0 m/s 
B)1.3 m/s 
C)0.67 m/s 
D)0.50 m/s 
E)0.25 m/s

Quizplus · Accepted Answer

The average speed is the total distance traveled divided by the total time taken. From the graph, we can see that the particle travels a total distance of 4 m between t = 1 s and t = 4 s. The total time taken is 4 s - 1 s = 3 s. Therefore, the average speed is 4 m / 3 s = 1.3 m/s.

FIGURE 2-11 -Fig. 2-11 Represents the Position of a Particle as It