Finding force needed to neutralize a vector

[devrimorgan]

Homework Statement

What force is needed to neutralize the resultant vector 150g at 36.87 degrees

Homework Equations

The Attempt at a Solution

I have no idea what this is even asking me to do. Please Help!
Thanks

 

[devrimorgan]

PS- my instructor is very clear and I haven't been in a class like this in over 5 years... any help would be greatly appreciated.