Question

Compare the Kinetic energies of a light and heavy mass that have equal momenta. Give reason for your answer.​

Answer 1

Answer:

Since, momenta of heavy body and light body are same, thus velocity of light body is greater than that of heavy body. Also, kinetic energy is proportional to the square of velocity hence, lighter body has greater kinetic energy.

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Answer 2

Answer:

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Explanation:

If a light body and heavy body have the same momentum, then the lighter body will have more kinetic energy since the velocity has to make up for its lighter mass. Since kinetic energy is inversely proportional to the mass, hence the lighter body will have more kinetic energy.