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When the momentum of body is increasedby three times, its K.E. becomes :(a) Twice(b) Half(c) Four times (d) Nine times |
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Answer» Relationship between kinetic energy and momentum is like:- k.E= P²/ m p= (momentum) m= (mass) by keeping mass constant we have:- k.E= p² k.E= (3)² K.E= 9 times☺ Relationship between kinetic energy and momentum is like:- k.E= P²/ m p= (momentum) m= (mass) by keeping mass constant we have:- k.E= p² k.E= (3)² K.E= 9 timesAnswerOption- D |
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