JEE Main & Advanced Physics NLM, Friction, Circular Motion Question Bank Motion of Connected Bodies

  • question_answer
    Three blocks of masses 2 kg, 3 kg and 5 kg are connected to each other with light string and are then placed on a frictionless surface as shown in the figure. The system is pulled by a force \[F=10N,\] then tension \[{{T}_{1}}=\] [Orissa JEE 2002]

    A)             1N

    B)             5 N

    C)             8 N

    D)             10 N

    Correct Answer: C

    Solution :

                    \[{{T}_{1}}=\left( \frac{{{m}_{2}}+{{m}_{3}}}{{{m}_{1}}+{{m}_{2}}+{{m}_{3}}} \right)g=\frac{3+5}{2+3+5}\times 10=8N\]


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