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A uniform rod of length l and mass m is ...

A uniform rod of length `l` and mass `m` is free to rotate in a vertical plane about `A` as shown in Fig. The rod initially in horizontal position is released. The initial angular acceleration of the rod is

A

`(2g)/(3L)`

B

`(3g)/(2L)`

C

`(2g)/(5L)`

D

`(3g)/(4L)`

Text Solution

Verified by Experts


`tau_(0)=mg((L)/(2))=I_(0) alpha=(mL^(2))/(3)alpha`
`alpha=(3g)/(2L)`
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