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An explosion breaks a rock into three parts in ahorizontal planeTwo of them go off at right angles toeach otherThe first part of mass 1 kg moves with aspeed of 12 ms-“1 and the second part of mass 2 kg moveswith speed 8 ms-“1If the third part flies off with speed 4ms-“1 then its mass is [NEET2013]

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An explosion breaks a rock into three parts in ahorizontal planeTwo of them go off at right angles toeach otherThe first part of mass 1 kg moves with aspeed of 12 ms-“1 and the second part of mass 2 kg moveswith speed 8 ms-“1If the third part flies off with speed 4ms-“1 then its mass is [NEET2013]






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