Answer:
AI-generated answer
To find the average speed, we need to divide the total distance traveled by the total time taken. In this case, since we know the initial speed is 0 m/s and the final speed is 15 m/s, we can assume that the speed changes linearly over time.
Let's consider an example: if it takes 5 seconds for the speed to change from 0 m/s to 15 m/s, we can calculate the average speed as follows:
1. Calculate the total distance traveled: Since the speed changes linearly, we can assume that the distance traveled is equal to the average speed multiplied by the time taken. In this case, the average speed is (0 m/s + 15 m/s) / 2 = 7.5 m/s. So, the total distance traveled is 7.5 m/s * 5 s = 37.5 meters.
2. Calculate the total time taken: The total time taken is simply the time it takes for the speed to change from 0 m/s to 15 m/s, which is 5 seconds.
3. Calculate the average speed: Divide the total distance traveled (37.5 meters) by the total time taken (5 seconds). Therefore, the average speed is 37.5 meters / 5 seconds = 7.5 m/s.
So, the average speed in this example is 7.5 m/s.
Step-by-step explanation: