Question

Anne rode 3000 m east. She then turned and rode 2000 m to the west in 1000 seconds. What was her velocity?

Answer 1

Answer:

1m/s [E]

Explanation:

So for displacement, its saying she went 3000m east and 2000m west. Since these two are in different directions, you would change the sign of one of them to change the direction;

3000m [E] + 2000m [W] = d

3000m [E] - 2000m [E] = d

1000m [E] = d

And its saying the time is 1000 seconds, so using velocity formula:

v = d/t

v=1000m[E] / 1000s

v = 1 m/s [E]