Final answer:
The total distance traveled by the object during the time interval of 0s and 40s is 800 meters.
Step-by-step explanation:
The total distance traveled by the object during the time interval of 0s and 40s can be found by multiplying the average velocity by the duration of time. Since the average velocity is given as 20 m/s and the time interval is 40s, we can calculate the total distance as follows:
Total distance = average velocity × time interval = 20 m/s × 40s = 800 meters.
Consequently, the correct answer stands at 800 meters (option D), showcasing how the product of the average velocity and the elapsed time period effectively quantifies the total distance covered by the object during the specified time window.