A mass m is attached to a thin wire and whirled in a vertical circle. wire is most likely to break w

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5.Work, Energy, Power and Collision

medium

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 highest point

B

the wire is horizontal

C

the mass is at the lowest point

D

inclined at an angle of $60^{\circ}$ from vertical

(NEET-2019)

Solution

$\mathrm{T}-\mathrm{mg} \cos \theta=\frac{\mathrm{mv}^{2}}{\mathrm{R}}$

$T$ will be maximum when $\theta=0^{\circ}$

When mass is at lowest point.

Standard 11

Physics

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