Answer:
A. 5 m/s
Explanation:
From the graph, for the first 2 seconds, the graph is a straight line meaning that the slope is a constant.
Average speed of an object is the rate of change of position. Here, the position of the object changes from 0 m to 10 m for a time interval of 2 seconds.
The change in position ([tex]\Delta x[/tex]) and time interval ([tex]\Delta t[/tex]) are given as:
[tex]\Delta x=10-0=10\ m\\\Delta t=2-0=2\ s[/tex]
Therefore, the average speed ([tex]s_{avg}[/tex]) is given as the ratio of the total change in position and the time interval for the change.
[tex]s_{avg}=\frac{\Delta x}{\Delta t}=\frac{10-0}{2-0}=\frac{10}{2}=5\ m/s[/tex]
Hence, the average speed is 5 m/s.
