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  3. RAJASTHAN ­ PET

RAJASTHAN ­ PET Rajasthan PET Solved Paper-2003

  • question_answer
    If in the lift, the body of mass 5 kg is suspended to spring balance, the lift moves downward with acceleration\[10\text{ }m/{{s}^{2}},\]then the reading of spring balance is

    A)  more than 5 kg-wt

    B)  less than 5 kg-wt

    C)  5 kg-wt

    D)  zero

    Correct Answer: D

    Solution :

     \[F=m(g-a)\] \[=5(10-10)=0\]


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