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NEET Sample Paper NEET Sample Test Paper-42

  • question_answer
    A body is released from a great height falls freely towards the earth. Another body is released from the same height exactly a second later. Then, the separation between two bodies, 2 sec after the release of the second body is nearly:

    A) 15m                 

    B) 20m  

    C) 25m                 

    D) 30m

    Correct Answer: C

    Solution :

    \[\operatorname{S}=ut+\frac{1}{2}g{{t}^{2}}\] \[\operatorname{S}=5{{t}^{2}}\] \[{{\operatorname{S}}_{1}}\left( t=3s \right)=5\times {{3}^{2}}=45\] \[{{\operatorname{S}}_{2}}\left( t=2s \right)=5\times {{2}^{2}}=20\] \[{{\operatorname{S}}_{1}}-{{S}_{2}}=45-20=25m\]


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