When the forces acting on an object are_______ (balanced, ubalanced), the object will stay at rest or move at a constant velocity according to the Law of_______ However, when the forces acting on an object are______ (balanced unbalanced, it will result to a net force that causes the object to______ (Stay at rest accelerates). The acceleration of an objects is_______ (directly inversely) proportional to the net force acting on it and______ (directly, inversely) to its mass according to the law of _________.