The average velocity and average speed of Louisa are 0m/s and 0.67 m/s respectively.
To find the answer, we need to know about average velocity and average speed.
What is average velocity?
- Average velocity is the ratio of total displacement and total time of travel.
- It's a vector quantity.
What is average speed?
- Average speed is the ratio of total distance travelled to total time taken.
- It's a scaler quantity.
What are the average velocity and average speed of Louisa?
- Here, Louisa came back to her house, so her total displacement is zero. Therefore, the average velocity is 0.
- But, her total travelled distance is 40m + 40m=80m. So, average speed is 80/120= 0.67m
Thus, we can conclude that the average velocity and average speed of Louisa are 0m/s and 0.67m/s respectively.
Learn more about average speed and average velocity here:
brainly.com/question/589950
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