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This isn't so bad. Have you had practice with these?

I can't do it with degrees :S

After a while, they'll become nearly routine!

Can you please go through the steps , i find these really confusing

Okay! So you've seen these? And have learned that any vector has separate components (x and y)?

We can draw a picture, if you like. Let's look at the first vector, 10N. Sound good?

Okay ! :)

Alright!
|dw:1360640234142:dw|
There's the vector in one piece.

How do we know that it's NE ?

|dw:1360640574984:dw|

OH so that's the common starting point ?

Yep! Angle measures start from there if no other information is given!

ohhh okay

Oh alright

So you have seen that before? Using the trig functions?

@burhan101 so you've got it? Congrats and take care if you did!

No

i know how to do these with like normal vectors

Haha, okay!

|dw:1360641728957:dw|

i know thats not right -.-

Im so lost lol

Have you ever used sine or cosine for angles?

Yea

|dw:1360642844365:dw|

If not, I can show you.

how do i add the other vector to this picture now

Are you giving it a shot?

Yes im trying to draw it out :$

So.. (wait for it...)

ohhh

|dw:1360644030205:dw|

aaannnndddd........

Actually, nevermind! Retake!

|dw:1360644367333:dw|That one.

|dw:1360644483191:dw|and that one.

Do you see where this is going?

Not realll dont i add the other 8 N at 068 degrees ?

Dont you just add then like the tail to tail method and then do tan inverse to find the angle ? :S

them *

You could, huh! But that's sort of what this is. Picture time! :)

okay so im not totally off track

|dw:1360645168898:dw|derfinately not!

|dw:1360645291825:dw|

That last one shows the resultant vector.

OH

|dw:1360645379901:dw|

makes so much sense !

\[\huge :)\]

so now i find the tan inverse right

Does that make sense?

i think so

Okay.... Ready to try it?

tan-1 = 68/45

i think :S

|dw:1360646989287:dw|

\[\begin{matrix}x-component&=&10cos(45)&=&7.07\\y-component&=&10sin(45)&=&7.07\end{matrix}\]

thanks for your help ! :D

Switched back. :)
You're very welcome! Take care! Tag me if you need any more help.