When equal forces act on an object in opposite directions, they cancel each other out and do not cause a change in the object's motion. This is known as a balanced force situation. In this case, the object will remain at rest or continue moving at a constant velocity. This can be observed in situations such as a book sitting on a table with the force of gravity pulling it down and the normal force of the table pushing it up, or a car driving at a constant speed with the driving force pushing it forward and air resistance pushing it back.
