Answer:
See explanation below
Explanation:
For two vectors A and B to have a positive resultant, they must both move in the positive direction i.e along the positive x axis
For two vectors A and B to have a zero resultant, they must both have the same magnitude but move in the opposite direction i.e one in the positive direction while the other in the negative direction.
Fie example if A = +5N, B = -5B
So that A+B = +5-5 = 0N