Answer: The speed of airplane is 1227 km/hr
Step-by-step explanation:
Average speed is defined as the ratio of total distance traveled to the total time taken.
To calculate the average speed of the airplane, we use the equation:
![\text{Average speed}=\frac{\text{Total distance traveled}}{\text{Total time taken}}](https://img.qammunity.org/2020/formulas/physics/high-school/ewx2kzkyjdm54yvamhwwts85fn0t82jt0h.png)
We are given:
Total distance traveled = (2760 + 2760) km = 5520 km (Round trip)
Total time taken = (2 + 2.5) hr = 4.5 hr
Putting values in above equation, we get:
![\text{Average speed of airplane}=(5520km)/(4.5hr)=1227km/hr](https://img.qammunity.org/2020/formulas/physics/high-school/79pu2w08pjwcc34ic9xgushkqyuqw2ynpw.png)
Hence, the speed of airplane is 1227 km/hr