11th Class Physics Laws Of Motion / गति के नियम Question Bank 11th CBSE Physics NLM, Friction, Circular Motion

  • question_answer
    A bullet fired from a gun is more dangerous than an air molecule hitting a person, though both of them have almost the same speed. Why?

    Answer:

                    Mass of a bullet is much greater than the mass of an air molecule. Therefore, even when both have almost the same speed, linear momentum of bullet is much larger than the linear momentum of an air molecule. Hence the force required to stop a bullet will be much bigger than the force required to stop an air molecule. That is why a bullet fired from a gun is more dangerous than an air molecule.


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