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JEE Main & Advanced Physics NLM, Friction, Circular Motion Question Bank Second Law of Motion

  • question_answer
    The spring balance inside a lift suspends an object. As the lift begins to ascent, the reading indicated by the spring balance will                                          [DCE 2003]

    A)             Increase

    B)             Decrease

    C)             Remain unchanged

    D)             Depend on the speed of ascend

    Correct Answer: A

    Solution :

                    When the lift moves upwards, the apparent weight,             \[=m(g+a)\]. Hence reading of spring balance increases.


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