# change in velocity

• October 6th 2012, 05:46 PM
Louisana1
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
• October 6th 2012, 05:48 PM
skeeter
Re: change in velocity
Quote:

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 ...

http://mathhelpforum.com/math-topics...sics-help.html
• October 6th 2012, 06:06 PM
Louisana1
Re: change in velocity
Do I use the same equation?
• October 6th 2012, 06:21 PM
skeeter
Re: change in velocity
use the method of components ...

$v_0 = -3j$

$v_f = -6i$

$\Delta v= v_f - v_0$