Physics, 16.11.2019 01:31 dezmondpowell

Afreight car with a mass of 10 metric tons is rolling at 108 km/h along a level track when it collides with another freight car, which is initially at rest. if the speed of the cars after they couple together is 36 km/h, what is the mass of the second car?
question options:

40 metric tons

20 metric tons

10 metric tons

5 metric tons (incorrect answer)

Answers: 1

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Afreight car with a mass of 10 metric tons is rolling at 108 km/h along a level track when it collid...