Give me an example situation in newton's first law of motion?

Newton's First Law of Motion talks about the inertia of the body in simple words. Example: If a rock is thrown. Why would it continue to move even after it is got out from your hand? Why should it move continuously? It should stop once you stop giving it force, right? But it won't. This is explained by Newton's First Law. Newton's First Law: A body in a state of motion or rest continues to do so until an external force acts on it.