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NEET Sample Paper NEET Sample Test Paper-43

  • question_answer
    Two blocks A and B are placed, one on the top of the other, on a smooth horizontal surface, as shown, The maximum horizontal force that can be applied to B, so that both A and B move together is 49 N. The coefficient of friction between A and B is -

    A) \[0.2\]            

    B) \[0.3\]

    C) \[0.5\]             

    D) \[0.8\]

    Correct Answer: C

    Solution :

    If they move together than \[{{a}_{A}}={{a}_{B}}=\frac{49}{10}=4.9\,m/{{s}^{2}}\] for just sliding condition of ?A? \[\mu \,{{M}_{A}}g={{M}_{A}}a\] \[\mu \times 9.8=4.9\] \[\mu =0.5\]


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