In a two-dimensional tug-ofwar, Alex, Betty, and Charles pull horizontally on an automobile tire at the angles shown in the picture. > > The tire remains stationary in spite of the three pulls.A|ex pulls with force FA of magnitude 202 N, and Charles pulls with force F C > > of magnitude 181 N. Note that the direction of F C is not given. What is the magnitude of Betty's force F B ifCharles pulls in (a) the direction drawn in the picture or (b) the other possible direction for equilibrium? (Iharlvs (a) Number a Units 1? 1' (b) Number l Units