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    Question

    Which law states that “an object remains at rest or in

    uniform motion unless acted upon by an external force”?  
    A Newton’s First Law Correct Answer Incorrect Answer
    B Newton’s Second Law Correct Answer Incorrect Answer
    C Newton’s Third Law Correct Answer Incorrect Answer
    D Law of Gravitation Correct Answer Incorrect Answer

    Solution

    Newton’s First Law is also called the Law of Inertia.   It says that an object will not change its motion unless a net external force acts on it.   This explains why passengers jerk forward in a suddenly stopping car.   It forms the foundation of classical mechanics.

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