NON coplanar forces, please i thanks

[jdhen]

Homework Statement

Find the resultant of three coplanar concurrent forces, f1 north a magnitude of 8 grams, F2 of magnitude 12 grams and acting southwest f3 of magnitude 5 grams and acting southeast Find the resultant in an easterly and northerly direction.

known values:
F1 = 8 grams North
F2 = 12 grams Southwest
F3 = 5 grams Southeast

Homework Equations

R=f1+f2+f3

N

/|\ (arrow up sorry don't know how to put a diagram here)
|
| F1 = 8 grams
|
|
/ \
/ \ F3 = 5 grams
/ \
F2=12 grams / \
V V

The Attempt at a Solution

In norhtern resultant: R=8 + 12 + 5 = 25 grams
In eastern am confused if i am going to add it again? and in my first eauation don't know if am right? please help me thanks

 

[jdhen]

oh no... my diagram... :( sorry this is my first time to join in a forum so don't know how to put a diagram.. but please help me thanks

 

[rl.bhat]

Your northern resultant is wrong. All the forces are not acting along the same direction.
Do you know how to resolve the vectors along vertical and horizontal direction?

 

[jdhen]

Your northern resultant is wrong. All the forces are not acting along the same direction.
Do you know how to resolve the vectors along vertical and horizontal direction?

thanks for the reply, actually, no, i tried to search anything in the net but i can't understand.. please help me... thanks again