Two forces act on an object. one has a magnitude of 4N in the y axis and the other has a 4N and is pointing 30 degrees below the posive x axis. what is the magnitude of the net force acting on the object?

Answer 1

<0,4> + <3.46,-2> = <3.46,2> = 4N 30 degrees above the x-axis.

Makes sense. Since the two vectors are the same magnitude, and 120 degrees apart, their resultant will be 60 degrees from each.