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A massless rod S having length 2l has eq...

A massless rod S having length `2l` has equal point masses attached to its two ends as shown in figure. The rod is rotating about an axis passing through its centre and making angle `alpha` with the axis. The magnitude of change of momentum of rod i.e., `|(dL)/(dt)|` equals

A

`2 m I^(3) omega^(2) sin theta. Cos theta`

B

`mI^(2) omega^(2) sin 2 theta`

C

`mI^(2) sin 2 theta`

D

`m^(1//2)I^(1//2) omega sin theta. Cos theta`

Text Solution

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The correct Answer is:
B
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