Here's why:
* Balanced forces: When forces acting on an object are equal in magnitude and opposite in direction, they are considered balanced.
* Net force: The net force is the overall force acting on an object. When forces are balanced, the net force is zero.
* Newton's First Law: This law 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.
Therefore, if the net force is zero due to balanced forces, the object's motion will not change. This means it will not accelerate, change direction, or change speed.