An object travels North at 4 ms−1 for 3 s and then travels South at 6 ms−1 for 8 s. What are the object's average speed and velocity?
1 Answer
Apr 28, 2016
The average speed is the total distance over the time, the average velocity is the total displacement over time. Speed =
Explanation:
Find the distances traveled in each step:
The total distance is the simple sum of these two distances,
The total displacement is the difference between them,
The total time is
To find the average speed:
To find the average velocity: