• Oct 6th 2010, 08:37 PM
Attachment 19210

Ok, so I spent like 15min on this and I got no luck -_- some help on how to do this question, plz and ty
• Oct 6th 2010, 09:26 PM
pickslides
For each of the 3 vectors you are given r and $\theta$

First of all, convert them back to cartesian co-ordinates.

$x = r \cos \theta$

$y = r \sin \theta$
• Oct 6th 2010, 09:28 PM