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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
          A simple machine helps a person in doing:                                      [IAS Prelim]

    A) less work

    B) the same amount of work with lesser force

    C) the same amount of work slowly

    D) the same amount of work much faster

    Correct Answer: B

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