Respuesta :

Answer:

5 m/s

Explanation:

The average speed of the object can be found by using the formula

[tex]v = \frac{d}{t} \\ [/tex]

d is the distance

t is the time taken

From the question we have

[tex]v = \frac{400}{80} = \frac{40}{8} \\ [/tex]

We have the final answer as

5 m/s

Hope this helps you