Answer:
The bird's average velocity is 4.00 m/s.
Explanation:
Given that,
Distance = 5190 km
Time[tex]t = 15.0\ days = 1.296\times10^{6}\ sec[/tex]
We need to calculate the bird's average velocity for the return flight
Using formula of average velocity
[tex]v_{avg}=\dfrac{d_{i}-d_{f}}{t}[/tex]
Where, d = position
t = total time
Put the value into the formula
[tex]v_{avg}=\dfrac{0-5190\times10^{3}}{1.296\times10^{6}}[/tex]
[tex]v_{avg}=-4.00\ m/s[/tex]
Negative sign shows the bird is traveling in negative x -axis.
Hence, The bird's average velocity is 4.00 m/s.