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प्रश्न
A light and heavy mass has equal momentum. Which will have more kinetic energy and why?
लघु उत्तर
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उत्तर
The lighter mass will have more kinetic energy. Since kinetic energy \[ K = \frac{p^{2}}{2m} \], for equal momentum p, kinetic energy is inversely proportional to mass. Therefore, the smaller the mass, the greater its kinetic energy.
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पाठ 2: Work, Power and Energy - EXERCISE [पृष्ठ ३२]
