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In the above question, the velocity of e...

In the above question, the velocity of end A at the instant it hits the ground is

A

`sqrt(3gl)`

B

`sqrt(12gl)`

C

`sqrt(6gl)`

D

none of these

Text Solution

Verified by Experts


Decrease in gravitational potential energy ltbrlt `=` increase in rotaional kinetic energy about `O`
`thereforemg(l)/(2)=(1)/(2)((ml^(2))/(3))omega^(2)`
or `omega=sqrt((3g)/(l))`
`v_(A)=romega=Iomega=sqrt(3gl)`
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