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

  • question_answer
    How much mass (approximately) of a body one can hold/when a force of \[1\,\,N\] is applied on it?

    A) \[100\,\,mg\]      

    B)        \[100\,\,g\]  

    C) \[1\,\,kg\]                      

    D)        \[10\,\,kg\]

    Correct Answer: B

    Solution :

     \[F=ma\] (according to Newton's second law of motion) Here, \[a=g=9.8m\,\,{{s}^{-2}}\] Hence, the force\[(1\,\,N)=m\times 9.8\]. As one kilogram is about \[9.8\,\,N\] \[m=1000/9.8=100\,\,g\](approximately)


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