How would you solve this ?

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  • m1 * v1 + m2 * v2 = m1 * v3 + m2 * v4

    Momentum must be maintained

    5 * 3 + 2 * 0 = 5 * 1 + 2 * v

    15 = 5 + 2v

    10 = 2v

    5 = v

    It's moving at 5 cm/s

    5 * 3 + 2 * 0 = 5 * 0 + 2v

    15 = 2v

    7.5 = v

    7.5 cm/s

    2 * 3 + 5 * 0 = 2 * (-1) + 5v

    6 = -2 + 5v

    8 = 5v

    1.6 = v

    1.6 cm/s

    Remember, velocity is a vector, so direction matters

    • jennifer2 months agoReport

      You don't have to change g to kg and cm  to meters?

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