As we know that average speed is given by the ratio of total distance covered and total time of motion so we will have
[tex]v_{avg} = \frac{distance }{time}[/tex]
now we have
distance covered = 40 meter
time taken by the bird = 10 minutes
now in order to find the average speed of the bird
[tex]v_{avg} = \frac{40}{10}[/tex]
[tex]v_{avg} = 4 meter/min[/tex]
so the average speed of the bird is 4 m/min
