Respuesta :

Answer:

The value is [tex]t =420 \ s[/tex]

Explanation:

From the question we are told that

    The speed of the man is  [tex]v = 1.5 \ m/s[/tex]

     The distance covered by the man is [tex]d = 630 \ m[/tex]

Generally the time taken is mathematically represented as

        [tex]t = \frac{d}{v}[/tex]

=>     [tex]t = \frac{630}{1.5}[/tex]

=>     [tex]t =420 \ s[/tex]