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NEET 2004 (AIPMT) · Conservation of Energy

Conservation of Energy question from NEET 2004 (AIPMT)

Q39NEET 2004 · AIPMTEasy

Conservation of Energy

A ball of mass 2 kg and another of mass 4 kg are dropped together from a 60 feet tall building. After a fall of 30 feet each towards earth, their respective kinetic energies will be in the ratio of

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Answer: (c)

After falling the same height $h$ , $KE = mgh \propto m$ .
$\frac{K_1}{K_2} = \frac{2}{4}$
So the answer is (c) $1:2$ .

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