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  4. A mass m is attached to a thin wire and whirled in a vertical circle. The wire is most likely to break when:

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Q. A mass $m$ is attached to a thin wire and whirled in a vertical circle. The wire is most likely to break when:

NEETNEET 2019Work, Energy and Power

Solution:

$T -mg = \frac{mu^{2}}{I} $
$ T =mg + \frac{mu^{2}}{I}$
The tension is maximum at the lowest position of mass, so the chance of breaking is maximum.

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