Inertia is the Inability of a body to change it's state of motion or state of rest Newton's first law of motion - sometimes referred to as the law of inertia. read more
Newton 's First Law = Inertia 8.1 - An object’s inertia causes it to continue moving the way it is moving unless it is acted upon by an (unbalanced) force to change its motion. An unbalanced force is a net force. read more