* Net Force: The net force is the overall force acting on an object. It's the sum of all forces, considering both magnitude and direction.
* Newton's First Law of Motion (Inertia): 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.
* Overcoming Static Friction: When an object is at rest, there's a force called static friction that opposes any attempt to move it. To get the object moving, the applied force must be greater than the static friction.
In simpler terms:
* Zero net force: The object won't move. All forces are balanced, resulting in no change in motion.
* Non-zero net force: The object will accelerate in the direction of the net force. This means it will start moving if it was at rest, or change its speed and/or direction if it was already moving.
