Answer:
the average speed is 5,040 km/hour
Step-by-step explanation:
The computation of the average speed is as follows:
Average speed = Total distance ÷ Total time
= (6 km + 8 km) ÷ (10 seconds)
= (14 km) ÷ (10 seconds)
= 5,040 km/hour
Hence, the average speed is 5,040 km/hour
We simply divided the total distance from the total time