- #1

aatari

- 73

- 3

## Homework Statement

Hi Guys, I am a bit unclear regarding adding vectors and hoping someone can clear up the confusion for me.

In the image below, we are adding two vectors and we used the vector components to find find x and y. Finally we then used x and y to get the resultant and the angle.

There is a diagram after "Now place the resultant components head-to-tail to form a right angled triangle", where we begin with x going east, then y going north and touching the tip of x.

My question is how do we determine to place the x and y in this way? Is there any criteria or methodology that we use because I could also place x starting at the tip of resultant vector and going east and then from the head of x vector going north to form y vector. If I do this the angle differs as adjacent and opposite sides of the angle change. Could anyone please help me understand this.

I hope my questions is clear.

**Problem:**Determine the length and direction of

*a*+

*b*if

*a*is 4 m [N30°E] and

*b*is 2 m [S40°W].

## Homework Equations

N/A