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Question
Two light vertical springs with equal natural lengths and spring constants k1 and k2 are separated by a distance l. Their upper ends are fixed to the ceiling and their lower ends to the ends A and B of a light horizontal rod AB. A vertical downwards force F is applied at point C on the rod. AB will remain horizontal in equilibrium if the distance AC is
The correct answer is:
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) for which the spool does not roll and remains stationary is given by
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