Newton's first law of motion, also known as the law of inertia, explains the behavior of objects at rest or in motion unless acted upon by an external force.
Newton's first law of motion, also known as the law of inertia, states that a body at rest remains at rest, or, if in motion, remains in motion at a constant velocity unless acted on by a net external force. This law is a fundamental concept in physics that explains the natural tendency of objects to maintain their state of motion.
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