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Momentum

A light mass ...

Question

A light mass and a heavy mass have equal momentum.Which will have more kinetic energy?

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Solution

let mass of light body be 'm' & heavy body be 'M'

given that mV=Mv

We know that K E= $fraction numerator P squared over denominator 2 m end fraction$

since as p is constant K E is inversly proportional to the mass of the object

hence light body has greater kinetic energy

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