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

  • question_answer Due to an impulse, the change in the momentum of a body is\[1.8\,\,kg\,\,m\,\,{{s}^{-1}}\]. If the duration of the impulse is\[0.2\,\,s\], then what is the force produced in it?

    A) \[9\,\,N\]                         

    B)        \[8\,\,N\]

    C) \[7\,\,N\]                                   

    D) \[6\,\,N\]

    Correct Answer: A

    Solution :

     Impulse \[=\] change in momentum of a body Force\[=I/t=\frac{1.8}{0.2}=9\,\,N\]

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