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State and explain that Newton's second …

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State and explain that Newton's second law is the real law
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Vipul Jadaun 6 years ago

Hi
Newton's second law is a real law of motion as it implies first and third law. From newton's second law; F=ma If F=0 a=0 Thus, says when net external force is 0,acceleration is 0. From second law; P+Pï=Fî+Fï (P is momentum of first object and Pï that of second object. Respectively is Fî and Fï ;final momenta) Then, P-Fî=Fï-Pï P-Fî=-(Pï-Fï) Ft=-(Fįt) F=-Fį where t is time interval, F is force on first object by second and Fį vice-versa . Thus, newton's third law is implied by second. Hence, second law alone is sufficient to rule the motion and is called real law of motion.
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