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

  • question_answer
    Three blocks A, B and C weighing 1, 8 and 27 kg respectively are connected as shown in the figure with an inextensible string and are moving on a smooth surface. \[{{T}_{3}}\] is equal to 36 N. Then \[{{T}_{2}}\] is                                    [EAMCET 1983]

    A)             18 N   

    B)             9 N

    C)                         3.375 N          

    D)                           1.25 N

    Correct Answer: B

    Solution :

        \[{{T}_{2}}=({{m}_{A}}+{{m}_{B}})\]×\[\frac{{{T}_{3}}}{{{m}_{A}}+{{m}_{B}}+{{m}_{C}}}\]             \[{{T}_{2}}=(1+8)\times \frac{36}{(1+8+27)}=9\ N\]


You need to login to perform this action.
You will be redirected in 3 sec spinner