How Do You Calculate the Resultant Force from Concurrent Coplanar Forces?

[nettie2311]

Homework Statement

Find the magnitude and direction of 4 concurrent coplanar forces:

10N 32 degrees east of north
35N 50 degrees east of north
25N 72 degrees east of north
85N 40 degrees east of south


Any help would be greatly appreciated.

 

[cupid.callin]

Split the forces into X and y components then solve

 

[nettie2311]

Thanks for the reply, but physics is totally new to me and I've been online to try to teach myself but I'm having no luck...can you be more specific.

 

[cupid.callin]

choose X and Y axis along north, south direction
Find X,Y components like in the pic.

find the net force of vector components along X axis by by adding vectors in same direction and subtracting the ones in opposite direction.
do same for Y axis.

Then find the net force of X and Y forces using this: sqrt(F_X + F_Y)

 

[LCKurtz]

Then find the net force of X and Y forces using this: sqrt(F_X + F_Y)

Of course you mean sqrt(F²_X + F²_Y).

 

[cupid.callin]

Oh yes!
my bad