2. Questions Bank
  3. 9th Class
  4. Science
  5. Work and energy

9th Class Science Work and energy Question Bank Work Power and Energy Summative Objective Problems

  • question_answer
    How much work is done by a force of ION in moving a body through a distance of 2m in its own direction?

    A)  20 J                       

    B)  24 J

    C)  26 J                                       

    D)  30 J

    Correct Answer: A

    Solution :

      \[F=10\,\,N,S=2\,\,m\] We know that\[W=F\times S=10\,N\times 2\,m=20\,N\,m\] \[=20\,J\]           


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