Three forces are applied to an object, as shown in the figure. Force F4 has a magnitude of 22.1 newtons (22.1 N) and is directed 30.0° to the left of the y axis. Force F2 has a magnitude of 14.7 N and points along the x axis. What must be the (a) magnitude and (b) direction (specified by the angle 0 in the drawing) of the third force F such that the vector sum of the three forces is ON?
