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A Iong slender rod of mass 2 kg and leng...

A Iong slender rod of mass `2 kg` and length `m` is placed on a smooth horizontal table. Two particles of masses `2 kg` and ` 1kg` strike the rod simultaneously and stick to the rod after collision as shown in fig.

Angular velocity of the rod after collision is

A

`11/17rad//s`

B

`rad//s`

C

`19/17rad//s`

D

`30/17rad//s`

Text Solution

Verified by Experts

The correct Answer is:
D
Applying conservation angular momentum about the centre of the rod,
`[(2xx(4)^(2))/12+2xx(1)^(2)+1xx(1)^(2)]xomega=2xx10xx1-1xx10xx1`
`omega=30/17rad//s`
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