physicss please help

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Suppose m1 = 9.52 kg, m2 = 11.99 kg and vf = 5.71 m/s. If v1i = 10.1 m/s, what was v2i

  • Did they stick together? -

    Need to know the whole problem.
    Did they collide?
    Did the two stick together after collision?
    If so
    Conservation of momentum
    m1 (10.1) + m2 (x) = (m1+m2)(5.71)

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