JEE Main & Advanced Physics NLM, Friction, Circular Motion JEE PYQ - NLM Friction Circular Motion

  • question_answer
    A body of mass ‘m’ is tied to one end of a spring and whirled round in a horizontal plane with a constant angular velocity. The elongation in the spring is 1 cm. If the angular velocity is doubled, elongation in the spring is 5 cm. The original length of the spring is: [JEE ONLINE 23-04-2013]

    A) 15 cm

    B) 12 cm

    C)             16 cm

    D) 10 cm

    Correct Answer: A

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