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Newton’s Laws of Motion
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What are the three Newton's laws of
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motion? Newton's laws of motion are
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three fundamental laws that describe how
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objects move and how forces act on them.
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Newton's laws explain the relationship
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between force, mass, and motion.
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They are the foundation of classical
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mechanics and help us understand
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everyday movements as well as complex
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physical systems. First law, law of
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inertia. An object remains at rest or
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continues to move with constant velocity
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in a straight line unless acted upon by
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an external force. Second law, the rate
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of change of momentum of an object is
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directly proportional to the applied
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force and occurs in the direction of the
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force.
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In simple terms, force equals mass times
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acceleration. Third law, for every
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action, there is an equal and opposite
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reaction. These laws explain how objects
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start moving, change motion, and
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interact with other objects. Imagine
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pushing a heavy box, it resists motion
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at first, inertia, moves when enough
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force is applied, second law, and pushes
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back against you with equal force, third
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law. Examples, a book remaining at rest
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on a table, first law, a car
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accelerating when force is applied,
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second law, recoil of a gun when fired,
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third law, walking, where the ground
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pushes you forward, rocket propulsion
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due to action and reaction forces.