A patient with a dislocated shoulder is put into a traction apparatus as shown in Fig. P1.63. The pulls $\overrightarrow{A}$ and $\overrightarrow{B}$ have equal magnitudes and must combine to produce an outward traction force of 12.8 N on the patient's arm. How large should these pulls be?
(Figure can't copy) Fig. P1.63
