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A uniform rod AB of mass .m.length 2a. i...

A uniform rod AB of mass .m.length 2a. is allowed to fall under gravity with AB in horizontal. When the speed of the rod is .v., suddenly the end .A. is fixed. Find the angular velocity with which it begins to rotate.

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`L_(1)=L_(2)`
`mva = I omega`
`mva = (m(2a)^(2))/(3)omega rArr omega = (3v)/(4a)`
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