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A child in a boat throws a 5.85-kg package out horizontally with a speed of 10.0 m/s. The mass of the child is 22.8 kg and the mass of the boat is 38.4 kg .

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Calculate the velocity of the boat immediately after, assuming it was initially at rest.

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The object mass is $\"\"$ .

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The object moves with a velocity of $\"\"$ .

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The mass of the child is $\"\"$ .

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The mass of the boat is $\"\"$ .

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The object moves with a velocity of $\"\"$ .

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Find the velocity of the boat.

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The initial momentum of the system is zero; the boat, child, and package are all at rest.

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Momentum after the child throws the package horizontally $\"\"$ .

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$\"\"$

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Momentum after the child throws the package horizontally $\"\"$ .

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$\"\"$

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Conservation of momentum:

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The initial momentum before child throws the package is equal to momentum the child throws the package.

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$\"\"$

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Negative sign indicates that the boat moves in opposite direction to the package.

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The magnitude of velocity of the boat after the child throws the package is \ \

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$\"\"$

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m/sec. \ \

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