Here's why:
* Newton's First Law of Motion: This law states that an object at rest will stay at rest, and an object in motion will stay in motion at a constant velocity, unless acted upon by a net force. This means that an object's state of motion (whether at rest or in motion) is preserved unless something changes it.
* Friction: In everyday life, we experience friction. This force acts against motion, making it seem like objects naturally come to rest. However, friction is an external force, not an inherent property of an object.
* The Universe is in Motion: Everything in the universe is in constant motion, from the Earth revolving around the sun to the expansion of the universe itself.
So, the natural state of an object is to maintain its current state of motion. If it's at rest, it will stay at rest unless a force acts on it. If it's moving, it will continue moving at a constant velocity unless a force acts on it.