Here's why:

* Equal and Opposite Forces: When two forces are equal in magnitude and opposite in direction, they are considered balanced forces.

* Net Force: The net force is the overall force acting on an object. With balanced forces, the net force is zero.

* Newton's First Law: Newton's First Law of Motion states that an object at rest will stay at rest, and an object in motion will stay in motion at a constant velocity unless acted upon by a net force.

Since there's no net force, the object will remain stationary.