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21 May, 11:41

24. Suppose a clay model of a koala bear has a mass of 0.200 kg and slides on ice at a speed of 0.750 m/s. It runs into another clay model, which is initially motionless and has a mass of 0.350 kg. Both being soft clay, they naturally stick together. What is their final velocity?

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  1. 21 May, 12:42
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    0.273 m/s

    Explanation:

    Momentum is conserved:

    mu = (m + M) v

    (0.200 kg) (0.750 m/s) = (0.200 kg + 0.350 kg) v

    v = 0.273 m/s
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