Answer:
[tex]v=0[/tex]
Explanation:
Knowing that the formula for average velocity is:
[tex]v=\frac{x_{2}-x_{1}}{t_{2}-t_{1}}[/tex]
Being said that, we know that the person's displacement is zero because it returns to its starting point
[tex]x_{2}=x_{1}[/tex]
That means [tex]x_{2}-x_{1}=0[/tex]
[tex]v=\frac{0}{t_{2}-t_{1}}=0[/tex]
