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A thin uniform rod, pivoted at \( O \) is rotating in the horizontal plane with constant angular speed \( \omega \), as shown in the figure. At time \( \mathrm{t}=0 \), small insect starts from \( \mathrm{O} \) and moves with constant speed \( v \) with respect
\( \mathrm{P} \) to the rod towards the other end. it reaches the end of

W the rod at \( \mathrm{t}=\mathrm{T} \) and stops. The angular speed of the system remains \( \omega \) throughout. The magnitude of the torque \( (|\bar{\tau}|) \) on the system about \( \mathrm{O} \), as a function of time is best represented by which plot? [IIT JEE-2012]
(B)
(C)
(D)
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