Answer: 266.67 s
Explanation:
Average velocity is the rate of change of displacement.
Bird flies 2400 m due west at an average velocity of 9.0 m/s.
![\text{Average velocity}=(Displacement)/(time)](https://img.qammunity.org/2020/formulas/physics/high-school/4zv6vl6sijzvltl1qiia1we84sge7np7tq.png)
Given, average velocity, v = 9.0 m/s
Displacement, d = 2400 m
![v=(d)/(t)\Rightarrow t=(d)/(v)\\ t=(2400 m)/(9.0,m/s)=266.67s](https://img.qammunity.org/2020/formulas/physics/high-school/2voa6kggyo7w1ldwqcc8uo7n9bgjqiescm.png)
Thus, bird was in flight for 266.67 s to fly from nest to land in a tree 2400 m due west.