Final answer:
To calculate average speed, divide total distance traveled by the duration of the interval.
Step-by-step explanation:
To calculate the average speed of an object over a given time interval, divide the total distance traveled by the object by the duration of the interval.
A) During the first 5 seconds: Use the formula average speed = total distance / time. Round to the nearest tenth when needed and include proper units in your answer.
B) Between 10 seconds and 20 seconds: Calculate the total distance traveled by the object during this interval and divide it by the duration of the interval.
C) From 25 seconds to 30 seconds: Find the total distance traveled by the object during this interval and divide it by the duration.
D) Over the entire 40-second period: Calculate the total distance traveled by the object during the 40 seconds and divide it by the duration.