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PHYSICS TEACHER

Physics Fundamentals BLOG for K12

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Newton’s Law of Motion

Newton’s First Law of Motion doesn’t hold good for all frames of reference

Newton’s first law says that if the sum of all the forces acting on a particle is zero then the particle remains at rest or moves with constant velocity i.e. acceleration of that particle is zero. Have you observed hanging hand grips inside a bus or train compartment? Its weight is acting vertically downwards and