Respuesta :

Answer:

The answer is 40 m/s

Explanation:

The speed or velocity of an object given it's distance and time taken can be found by using the formula

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

From the question we have

[tex]v = \frac{400}{10} \\ [/tex]

We have the final answer as

40 m/s

Hope this helps you

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