Question

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An explosion breaks a rock into three parts in a horizontal plane . Two of them go off at right angles to each other . The first part of mass 1 kg moves with a speed of 12 m/s and the second part of mass 2 kg moves with 8 m/s speed . If thr third part flies off with 4 m/s speed , then find its mass ????

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Answer 1

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Answer 2

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