A blue train of mass 50 kg moves at 4 m/s toward a green train of 30 kg initially at rest. What is the initial momentum of the green train?

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A blue train of mass 50 kg moves at 4 m/s toward a green train of 30 kg initially at rest. What is the initial momentum of the green train?

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Thu Hương 4 years 2021-08-13T06:50:17+00:00 1 Answers 34 views 0

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    2021-08-13T06:51:37+00:00
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    Answer:

    I think answer is zero

    bcz momentum=mass×velocity

    body was initially at rest it means its velocity is zero

    30×0=0

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