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Two balls, one with a mass of 2 kg and the other with a mass of 3 kg, collide elastically. After the collision, the 2-kg

Two balls, one with a mass of 2 kg and the other with a mass of 3 kg, collide elastically. After the collision, the 2-kg ball moves to the left with a velocity of 4 m/s and the 3-kg ball moves to the right with a velocity of 2 m/s. What was the initial velocity of each ball?

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