* Net Force: When forces are balanced, the net force acting on an object is zero. In this case, the applied force and the friction force are equal and opposite, resulting in a net force of zero.
* Newton's First Law: Newton's First Law of Motion states that an object at rest stays at rest, and an object in motion stays in motion at a constant velocity, unless acted upon by a net force.
* Constant Velocity: Since the net force is zero, the book will continue to move at the same velocity it had before the forces balanced out. This could mean the book is at rest (zero velocity) or moving at a constant speed in a straight line.
In simpler terms: Imagine pushing a book across a table. If you push with just enough force to overcome friction, the book will slide smoothly at a constant speed.
