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Why second law of motion is also known as real law of motion? |
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Answer» According to Newton's second law :F=maIf F=0 then a=0,m is unequal to 0Which STATES that there will be no acceleration in the body if no external force is APPLIED on it.This means that a body in rest will remain at rest and a body in uniform motion will remain in uniform motion which is ALSO stated in Newton's 1st law.Now,let F1 is the force exerted by a body A on B and F2 is the force exerted by body B on A .Change in LINEAR momentum of body A= F1×∆tChange in linear momentum of body B=F2×∆tThen,F1×∆t+F2×∆t=0F1×∆t=-F2×∆tF1=-F2Action = Reaction,w hich is the third law of motion.Therefore,2nd law of motion is a real law of motion.pls mark as brilliant ANSWER and follow me |
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