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UPSC Physics Work, Energy And Power / कार्य, ऊर्जा एवं शक्ति Question Bank Laws of Motion, Force, Work, Energy and Power, Centre of Mass

  • question_answer
          How much time will it take to perform 440 J of work at a rate of 11 W?

    A) 50 s                             

    B) 40 s

    C) 30 s                 

    D)      20 s

    Correct Answer: B

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