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What does Newton’s First Law of Motion say about objects at rest or in motion?
Updated: 11-Apr-2025

Newton’s First Law, also called the Law of Inertia, states that an object will remain at rest or in uniform motion in a straight line unless acted upon by an external force. This means that without interference, moving objects won't stop or change direction on their own.

It explains why you keep sliding in a car if it suddenly stops—your body wants to keep moving. Seat belts help counteract this inertia for safety

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