Question

Holden is trying to determine the velocity of his race car. He went 20 meters east, turned around, and went 40 meters west. His car was 20 meters from the starting line. This took 5 seconds. What is the car’s average velocity?
4 m/s east
4 m/s west
12 m/s west
12 m/s east

Answer 1

Answer: 4 m/s west

Explanation:

Edge 2021

Answer 2

Answer:

The average velocity can be found by calculating the total displacement of the car and dividing it by the total time.

The car's average velocity is "4 m/s west".

First, we will find the total displacement as follows:

Total Displacement = 20 m (East) + 40 m (West)

Taking East direction as positive and west direction as negative, we get:

Total Diplacement = 20 m - 40 m

Total Displacement = - 20 m = 20 m (West)

Now, the average velocity of the car will be:

Average Velocity = 4 m/s west

Explanation: