NEET Sample Paper NEET Sample Test Paper-2

  • question_answer
    A block P of mass m is placed on a horizontal frictionless plane. A second block of same mass m is placed on it and is connected to a spring of spring constant K, the two blocks are pulled by distance A. Block Q oscillates without slipping. What is the maximum value of frictional force between the two blocks?                          

    A)  \[\frac{KA}{2}\]              

    B)  KA

    C)  \[{{H}_{5}}mg\]              

    D)  zero                      

    Correct Answer: A

    Solution :

    As  \[\therefore \]   \[{{a}_{\max }}=\frac{KA}{2m}\] There is only the friction that makes the two bodies as the composite mass. Hence,   \[{{f}_{\max }}=m{{a}_{\max }}=\frac{KA}{2}\]


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