When two forces are pushing in opposite directions with the same strength, they cancel each other out. This results in a net force of zero, meaning the object they are acting upon will remain at rest if it was initially stationary, or continue moving at a constant velocity if it was already in motion.

Here's a breakdown:

* Equal and Opposite Forces: The forces are equal in magnitude (strength) but act in opposite directions.

* Net Force: The net force is the sum of all forces acting on an object. In this case, the forces cancel each other out, resulting in a net force of zero.

* Equilibrium: When the net force is zero, the object is in a state of equilibrium. This means the object is either at rest or moving at a constant velocity.

Example: Imagine you're pushing a box from one side, and your friend is pushing it from the opposite side with the same amount of force. The box won't move because your forces are balanced and cancel each other out.

Important Note: This principle is known as Newton's First Law of Motion, which states that an object at rest stays at rest, and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.