The time taken is 50 s
Explanation:
For a body moving in uniform motion (= at constant velocity), the velocity of the body is given by:
[tex]v=\frac{d}{t}[/tex]
where
v is the velocity
d is the distance covered
t is the time taken
In this problem, we have a bird travelling with uniform motion. We know that:
v = 8 m/s is the velocity of the bird
d = 400 m is the distance travelled
Solving for t, we find the time the bird needs to cover this distance:
[tex]t=\frac{d}{v}=\frac{400}{8}=50 s[/tex]
Learn more about velocity:
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