The momentum of the car train system immediately before a collision would be a) 5.69 x 10^5kg x m/s, 7.36° north of east b) 5.69 x 10^5kg x m/s, 82.6° north of east c) 6.40 x 10^5kg x m/s , 7.36° north of east d) 6.40 x 10^5 kg x m/s, 82.6° north of east

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