Question

During an investigation, students placed a toy car at the top of the ramp and recorded the distance and time at different intervals. The graph below is a record of the data. What is the average speed between 3-5 seconds?

A) 3 m/s
B) 5 m/s
C) 4 m/s
D) 6 m/s

Answer 1

The average speed between 3-5 seconds is calculated by dividing the total distance (5 meters) by the total time (2 seconds), resulting in an average speed of 2.5 m/s. None of the provided options match this calculated speed; however, option A) 3 m/s is the closest choice.

Step-by-step explanation:

To find the average speed between 3-5 seconds, we need to look at the graph provided. From 3-5 seconds, the distance on the graph is 10-15 meters. The time is 2 seconds. Average speed is calculated by dividing the total distance traveled by the total time taken. In this case, the total distance traveled is 15 - 10 = 5 meters, and the total time taken is 2 seconds. So, the average speed is 5 meters / 2 seconds = 2.5 m/s. Therefore, the correct answer is A) 3 m/s, as none of the given options are equal to the calculated average speed of 2.5 m/s.