Here's why:
* Net Force: The net force is the overall force acting on an object, taking into account both the magnitude and direction of all individual forces.
* Balanced Forces: When forces are balanced, they cancel each other out, resulting in a net force of zero. This means the object remains at rest or continues moving at a constant velocity.
* Unbalanced Forces: When forces are unbalanced, the net force is not zero. This means there is a resultant force acting on the object, causing it to accelerate.
In simpler terms: If the forces pushing or pulling on an object aren't equal and opposite, the object will move.