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A 12 kg bomb at rest explodes into two pieces of 4 kg and 8 kg. If the momentum of 4 kg piece is 20 Ns, the kinetic energy of the 8 kg piece is

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A 12 kg bomb at rest explodes into two pieces of 4 kg and 8 kg. If the momentum of 4 kg piece is 20 Ns, the kinetic energy of the 8 kg piece is 

(1) 20 J 

(2) 40 J 

(3) 25 J 

(4) 50 J

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1 Answer

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Best answer

Correct option (3) 25 J

Explanation:

Law of conservation of momentum

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