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JEE Main & Advanced Physics NLM, Friction, Circular Motion Question Bank Mock Test - Newtons Laws of Motion without Friction

  • question_answer
    A mass of 1 kg is suspended by a string A. Another string C is connected to its lower end. If a sudden jerk is given to C, then

    A)  the portion AB of the string will break

    B)  the portion BC of the string will break

    C)  none of the strings will break

    D)  the mass will start rotating  

    Correct Answer: B

    Solution :

    [b] When a sudden jerk is given to C, an impulsive tension exceeding the breaking tension develops in C first, which breaks before this impulse can reach A as a wave through block.


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