According to Newton's law of motion, what will happen to an object at rest?

Newton's first law of motion states that an object at rest will remain at rest unless acted upon by an external force. This principle reflects the concept of inertia, which is the tendency of an object to resist changes in its state of motion. In practical terms, this means that without an external force, such as a push or pull, an object will not spontaneously start moving; it will stay in its stationary position.

The law applies universally, regardless of the environment, whether it’s in a vacuum or filled with air, and it emphasizes that motion is not induced without an influence from outside the object itself. Therefore, the notion that an object will remain at rest until something causes it to move is the core idea captured in this law.