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Uniform rod AB is hinged at end A in hor...


Uniform rod AB is hinged at end A in horizontal position as shown in the figure. The other end is connected to a block through a massless string as shown. The pulley is smooth and massless. Mass of block and rod is same and is equal to `m` Then acceleration of block just after release from this position is

A

`6g//13`

B

`g//4`

C

`3g//8`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
C
`alpha=a/l`……………i

`mg-T=ma`……..ii
`Tl-mgl/2=(ml^(2))/3alpha`…………..iii
Solving the above equations `a=(3g)/8`
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