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A ball of mass 2 kg and another of mass 4 kg are dropped together from a 60 m tall building. After a fall of 30 m, their respective kinetic energies will be in the ratio of: |
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Answer» A ball of mass 2 kg and another of mass 4 kg are dropped together from a 60 m tall building. After a fall of 30 m, their respective kinetic energies will be in the ratio of: |
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