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12. A 4-kg ball moving to the right at 12 m/s collides elastically with a 2-kg ball moving to the left at 6 m/s. What are the speeds of the 4-kg and the 2-kg balls after the collision? A) 4 m/s and 10 m/s B) 6 m/s and 12 m/s C) 12 m/s and 6 m/s D) 8 m/s and -8 m/s E) 10 m/s and -4 m/s

12. A 4-kg ball moving to the right at 12 m/s collides elastically with a 2-kg ball moving to the left at 6 m/s. What are the speeds of the 4-kg and the 2-kg balls after the collision? A) 4 m/s and 10 m/s B) 6 m/s and 12 m/s C) 12 m/s and 6 m/s D) 8 m/s and -8 m/s E) 10 m/s and -4 m/s

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12. A 4-kg ball moving to the right at 12 m/s collides elastically with a 2-kg ball moving to the left at 6 m/s. What are the speeds of the 4-kg and the 2-kg balls after the collision? A) 4 m/s and 10 m/s B) 6 m/s and 12 m/s C) 12 m/s and 6 m/s D) 8 m/s and -8 m/s E) 10 m/s and -4 m/s
Transcribed Image Text:12. A 4-kg ball moving to the right at 12 m/s collides elastically with a 2-kg ball moving to the left at 6 m/s. What are the speeds of the 4-kg and the 2-kg balls after the collision? A) 4 m/s and 10 m/s B) 6 m/s and 12 m/s C) 12 m/s and 6 m/s D) 8 m/s and -8 m/s E) 10 m/s and -4 m/s
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