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9th Class Science Work and energy Question Bank Work Power and Energy Conceptive Subjective Problems

  • question_answer
    If the work done by a force in moving an object through a distance of 20m is 24.2J, then what is the magnitude of the force?

    Answer:

    Given, \[S=20\,\,mW=24.2J\]                 \[F=?\] We know, \[W=F\times S\Rightarrow F=\frac{W}{S}\] \[\Rightarrow F=\frac{24.2}{20}=1.21\,N\]


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