What is the Magnitude of Betty's Force for Equilibrium?

[J-dizzal]

Homework Statement

F_C of magnitude 188 N. Note that the direction of F_C is not given. What is the magnitude of Betty's force F_B if Charles pulls in (a) the direction drawn in the picture or (b) the other possible direction for equilibrium

Homework Equations

ΣF=0[/B]

The Attempt at a Solution

Im having trouble with part b) of the question. I don't know what other possiblities there are.

 

[phinds]

I can't see any of your images. Are they embedded or linked?

 

[J-dizzal]

I can't see any of your images. Are they embedded or linked?

updated

 

[americanforest]

B has no horizontal component so you need to find at which angle (other than the one you originally found) the horizontal component of C is exactly opposite to the horizontal component of A. Such an angle is guaranteed to exist (think of the graph of cosine).

 

[J-dizzal]

B has no horizontal component so you need to find at which angle (other than the one you originally found) the horizontal component of C is exactly opposite to the horizontal component of A. Such an angle is guaranteed to exist (think of the graph of cosine).

oh its so obvious now thanks