physics

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a 20.0 kg child on an 80 kg boat throws a 5 kg package horizontally with a speed of 10 m/s. Calculate the resulting density of the boat, assuming it was initially set at rest.

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    Density? What was the original volume? Assuming the density of the boat to be originally about .50, then

    volume= 105kg/.5=210liters

    Then new density is 100kg/210liters=.476

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