Final answer:
The incorrect statement about a balanced net force is that it always has a normal force, as balanced forces can occur without a normal force present.
Step-by-step explanation:
The statement that is NOT TRUE for a balanced net force is b) Always has a normal force. A balanced net force means that the net force is zero, which can occur in situations without a normal force, for example, when two equal and opposite forces act in mid-air. Additionally, a balanced net force implies no acceleration, the existence of equal forces in opposite directions, and that the net force sums up to zero (Net = 0).