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CBSE - IX - Physics - Work and Energy

a lighter body and a heavier body have same momentum.which has greater kinetic energy?justify

Asked by nishmita bandekar 17th January 2011, 12:00 AM
Answered by Expert

Answer:

Dear Student,
KE = mv2/2 = p2/2m   .. where p = mv is linear momentum.
Since for same momentum KE is inversely propotional to the mass, KE of lighter body is greater than that of heavier body.
regards,
Team,
TopperLearning.
Answered by Expert 17th January 2011, 10:00 PM

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