Physics

Recall the formula for average speed: . To determine the average speed, we need to find the total distance traveled in 55 seconds.

 

To find the distance traveled from a position-time graph, we consider the absolute - value of the changes in position in each part of the motion.

 

Analyze each part of the motion:

0 - 10s

The initial position is 0 and the final position . The change in position .

 

10 - 15s

The object is at rest, so the change in position .

 

15 - 40s

The initial position and the final position . The change in position