A string of length 90 cm is fastened to two points ‘A’ and ‘B’ at the sa

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A string of length 90 cm is fastened to two points ‘A’ and ‘B’ at the same level 60 cm apart. A ring weighing 120 g is slided on the string. A horizontal force ‘P’ is applied to the ring such that it is in equilibrium vertically below ‘B’. The value of ‘P’ is:

Options:

A . 40 g

B . 60 g

C . 80 g

D . 100 g

Answer: Option C

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