# Thread: change in velocity

1. ## change in velocity

What are the size and direction of the change in velocity if the initial velocity is 3 m/s south and the final velocity is 6 m/s west?

_____ m/s
_____° north of west

2. ## Re: change in velocity

Originally Posted by Louisana1
What are the size and direction of the change in velocity if the initial velocity is 3 m/s south and the final velocity is 6 m/s west?

_____ m/s
_____° north of west
I showed you how to do this in your other post ...

Physics Help

3. ## Re: change in velocity

Do I use the same equation?

4. ## Re: change in velocity

use the method of components ...

$v_0 = -3j$

$v_f = -6i$

$\Delta v= v_f - v_0$