NEET Sample Paper NEET Sample Test Paper-19

  • question_answer Find the force exerted by 5 kg block on floor of lift, as shown in the figure. (Take\[g=10\text{ }m/{{s}^{2}}\])

    A)   100 N                       

    B)  200 N

    C)   105 N                       

    D)  210 N

    Correct Answer: C

    Solution :

                \[{{N}_{1}}=2g+5\times 2=30N\]             and \[{{N}_{2}}=5g+25+{{N}_{1}}=50+25+30\]             \[\Rightarrow \]\[{{N}_{2}}=105\,N\] Hence, the correction option is [c].

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