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NEET Sample Paper NEET Sample Test Paper-11

  • question_answer
    Two bodies of mass 3 kg and 4 kg are suspended at the ends of massless string passing over a frictionless pulley. The acceleration of the system is \[(g=9.8\,m/{{s}^{2}})\]

    A) \[~4.9\text{ }m/{{s}^{2}}\]                 

    B) \[~2.45\text{ }m/{{s}^{2}}\]

    C) \[~1.4\text{ }m/{{s}^{2}}\]                 

    D) \[~9.5\text{ }m/{{s}^{2}}\]

    Correct Answer: C

    Solution :

     Acceleration \[=\frac{({{m}_{2}}-{{m}_{1}})}{({{m}_{2}}+{{m}_{1}})}g\] \[=\frac{4-3}{4+3}\times 9.8=\frac{9.8}{7}=1.4\,m/{{\sec }^{2}}\]


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