- an object continues to maintain its state of of rest or of uniform motion unless acted upon by an external net force - this means that if the speed of an object's motion varies aka if acceleration occurs, then there is a nonzero net force acting on the ball - when the object moves at a constant speed, the acceleration is zero - static objects means that the object has a net force of 0 - ex. think about outer space, a guy floating through air, no force enacted on him but he stays moving forever at constant speed - ![[CleanShot 2024-06-24 at [email protected]|300]]