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9th Class Science Work and energy Question Bank Work, Energy and Power

  • question_answer
    An anti-aircraft shell has been fired and it has a kinetic energy\[x\]. It explodes in the air. Then the sum of kinetic energies of all the particles is

    A)  \[x\]

    B)  more than \[x\]  

    C)  less than \[x\]

    D)  zero

    Correct Answer: B

    Solution :

     During explosion, the chemical energy gets converted into kinetic energy. So, after explosion sum of kinetic energies of all the particles is greater than the initial kinetic energy.


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