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One end of a light rod of length 1m is a...

One end of a light rod of length 1m is attached with a string of length 1m. Other end of the rod is attached at point O such that rod can move in a vertical circle. Other end of the string is attached with a block of mass 2kg. The minimum velocity that must be given to the block in horizontal direction so that it can complete the vertical is `(g=10 m//s^(2))`

A

`4sqrt(5)`

B

`5sqrt(5)`

C

10

D

`3sqrt(5)`

Text Solution

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