7th Class Science Related to Competitive Exam Question Bank Work and energy

  • question_answer
    Aman throws a ball with a force of 20N.Findthe distance covered by the ball if work done is 60 J in this process.

    A) 3m    

    B) 9m

    C) 6m                              

    D) 12m

    Correct Answer: A

    Solution :

        Since \[W=F\times d\] or \[60=20\times d\] \[\therefore d=\frac{60}{20}=3m\]                          


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