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Class 11 NEET Physics Laws of Motion Questions

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Question : 26

Total: 75

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 12ms−1and the second part of mass 2 kg moves with 8ms−1 speed.If the third part flies off with 4ms−1 speed,then it mass is

(2013 NEET)

7 kg
17 kg
3 kg
5 kg

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