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  5. Force and laws of motion

9th Class Science Force and laws of motion Question Bank Case Based MCQs - Force and Laws of Motion

  • question_answer
    Momentum of a bullet of mass 0.2 kg moving at 400 m/s will be

    A) 4 kg m/s

    B) 80 kg m/s

    C) 8 kg m/s

    D) 40 kg m/s

    Correct Answer: B

    Solution :

    [b] As momentum, p = m \[\times \] v = 0.2 \[\times \] 400
    \[=\frac{2}{10}\times 400=80kg-m/s\]


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