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9th Class Science Force and laws of motion Question Bank Force and Laws of Motion

  • question_answer
    What is the average force necessary to stop a hammer with a momentum of \[25\,\,N\,\,s\] in\[0.05\,\,s\]?

    A) \[500\,\,N\]          

    B)        \[125\,\,N\]

    C) \[50\,\,N\]         

    D)        \[25\,\,N\]

    Correct Answer: A

    Solution :

     Impulse \[=\] Force \[\times \] time \[25=F\times 0.05\],\[F=\frac{25}{0.05}=500\,\,N\]


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