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    Question

    Which conservation principle is applicable in the case

    of the motion of a rocket?
    A Conservation of mass Correct Answer Incorrect Answer
    B Conservation of charge Correct Answer Incorrect Answer
    C Conservation of momentum Correct Answer Incorrect Answer
    D Conservation of energy Correct Answer Incorrect Answer

    Solution

    The motion of a rocket is an application of Newton's third law of motion and law of conservation of linear momentum. The operation of a rocket illustrates the conservation of momentum. Just before launching, the momentum of the rocket is zero. When the rocket is fired, it forces a jet of hot gases with a high velocity through the nozzle.

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