What is the state law of intertia?

The law of inertia, also known as Newton's First Law of Motion, states that an object at rest will remain at rest, and an object in motion will continue in motion at a constant velocity, unless acted upon by a net external force. This principle highlights the tendency of objects to resist changes in their state of motion. It underscores the importance of forces in altering the motion of objects. Inertia is directly related to an object's mass; greater mass means greater inertia.