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Guys, Plz answer 2 Questions with proper explanation... |
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Answer» tion:7) given,mass of you 'm'= 50kgspeed of train 'v' = 108km/h= 108×5/18mls [.: 1km/h = 5/18m/s]= 6×5m/s= 30m/sOption A:as you are waiting for your friends SINCE, you are in rest so your KINETIC energy is zero..: OPTION A IS CORRECT.OPTION B:as your friends are in train , it will appear for them you are moving.: velocity of train = velocity of you = 30m/smass of you = 50kgK.E = 1/2mv² = 1/2×50×(30)²= 25×900 J= 22500 J.: OPTION B IS CORRECTOPTION C:as option b is correct it is wrong |
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