• Support PF! Buy your school textbooks, materials and every day products Here!

Finding vectors in Cartesian Coordinates

  • #1

Homework Statement


The vector V is given by V = (5.0x-12.0y )m. What is W such that V + W = -5|V|x?


Homework Equations


|v| = (vx2 + vy2)1/2


The Attempt at a Solution


I was unsure of what I did to subtract vector v- I know the negative vector has the same magnitude but opposite direction of the positive vector, but I wasn't sure how to express it. I wound up switching the signs to express that they were in different directions.

w = -5 |v| xhat - v
w = (-5)(13 m) xhat + (-5.0 xhat + 12.0 yhat)m
w = (-70.0 xhat + 12.0 yhat) m
 

Answers and Replies

  • #2
rock.freak667
Homework Helper
6,230
31
That looks correct to me.
 

Related Threads for: Finding vectors in Cartesian Coordinates

  • Last Post
Replies
3
Views
583
Replies
6
Views
40K
Replies
6
Views
2K
Replies
0
Views
2K
Replies
1
Views
4K
Replies
3
Views
6K
Replies
1
Views
878
Top