In the given figure , if the velocity of...

In the given figure , if the velocity of the block C at a particular instant is `-20 m s^(-1)hatJ` , then the velocity of the rod (A) that instant will be : (string is attached to wedge )

A

`15 ms^(-1)hatj`

B

`-15 ms^(-1)hatj`

C

`20 ms^(-1)hatj`

D

`-20 ms^(-1)hatj`

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A

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