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A closed chain A of mass m = 0.36kg is a...

A closed chain `A` of mass `m` = 0.36kg is attached to a vertical rotating shaft by means of thread showin in fig. and rotated with a constant angular velocity `omega=35rad//s`. The thread forms an angle `theta=45^(@)` with the vertical. Then the tension of the thread is

Text Solution

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For circular motion of the chain
`T sin theta=m omega^(2) r and T cos theta=mg`
`:. Tan theta=(omega^(2)r)/g or r=(g tan theta)/omega^(2)`
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