Which force causes a body to change its position?

We know that unbalanced forces are forces that are not equal in magnitude and cause an object's motion to fluctuate in speed and/or direction. When two unbalanced forces act in opposite directions, their aggregate force equals the difference between them.

For example, When you push against a wall, it pushes back with a force that is equal but opposite to yours. You and the wall will not be able to move. Unbalanced forces are those that cause an object's motion to alter. Forces that are out of balance are not equal and opposite.

Hence, unbalanced force causes a body's position to change.