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A weightless rod of length 2l carries tw...

A weightless rod of length `2l` carries two equal masses 'm', one tied at lower end `A` and the other at the middle of the rod at `B`. The rod can rotate in vertical plane about a fixed horizontal axis passing thriugh `C` . The rod of is released from rest in horizontal possion. The speed of the mass `B` at the instant rod become vertical is:

A

`sqrt((3gl)/(5))`

B

`sqrt((4gl)/(5))`

C

`sqrt((6gl)/(5))`

D

`sqrt((7gl)/(5))`

Text Solution

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The correct Answer is:
C
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