Question

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

• A. the mass is at the lowest point
• B. inclined at an angle of $60^{\circ}$ from vertical
• C. the mass is at the highest point
• D. the wire is horizontal

Answer 1

The Correct Option is A

$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.