Two discs, each having mass m, are attached rigidly to the ends of a vertical spring. One…
Physics · JEE Advanced · NTA Exams — Work, Energy and Power
Two discs, each having mass m, are attached rigidly to the ends of a vertical spring. One of the discs rests on a horizontal surface and the other produces a compression x0 on the spring when it is in equilibrium. How much further must the spring be compressed so that when the force causing compression is removed, the extension of the spring will be able to lift the lower disc off the table
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- x0
- 2x0
- 3x0
- 1.5x0
Answer
(B) 2x0
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