1. No Net Force:
* When the sum of all forces acting on an object is zero, there is no net force.
* This means the forces are balanced, and they cancel each other out.
* As a result, the object will either remain at rest (if it was initially stationary) or continue moving at a constant velocity (if it was already in motion).
Example: A book sitting on a table. The force of gravity pulling the book down is balanced by the normal force of the table pushing the book up.
2. Zero Force:
* If there are no forces acting on an object at all, it will also remain in its current state of motion.
* This is consistent with Newton's First Law of Motion, also known as the Law of Inertia.
Example: An astronaut floating freely in space. They are not affected by any significant forces, so they will continue moving at the same speed and direction.
Important Note:
It's crucial to understand that the absence of change in motion doesn't mean the object is not moving. It simply means its velocity is constant - both speed and direction remain the same.
