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A bomb of mass 9 kg explodes into 2 pieces of mass 3 kg and 6 kg . The velocity of mass 3 kg is 1.6 m / s , the K.E. of mass 6 kg is.

1. 3.84 J
2. 9.6 J
3. 1.92 J
4. 2.92 J

Correct answer: 1.92 J

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