14) A 3.0 kg mass moving on a frictionless surface explodes into three pieces of 1.0 kg each. After the explosion, the velocities of the pieces are: (1) 9.0 m / s, north; (2) 4.0 m / s, 30 ° south of west, and (3) 4.0 m / s, 30 ° south of east. What was the magnitude of the velocity of the 3.0-kg body before the explosion? Answers: a) 1.7 m/s           b) 1.0 m/s          c) 1.3 m/s          d) 2.0 m/s            e) 2.8 m/s

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