Explanation:
Given that,
Speed of the dog is 0.55 m/s and it is constant.
We need to draw position-time graph to represent Marshall's dog walking the 19.8-m distance from in of his house to the nearest stop sign.
We can find time using definition of speed.
[tex]t=\dfrac{d}{v}\\\\t=\dfrac{19.8\ m}{0.55\ m/s}\\\\t=36\ s[/tex]
The attached figure shows the position-time graph of Marshall's dog.
