In the figure shown the velocity of A wi...

In the figure shown the velocity of A with respect to ground is `(20hat(i) + 15hat(j)) m//s`, then what will be the magnitude of velocity of the wedge 'B' with respect to ground frame. (A remains in contact with B)

`12 m//s`

`25 m//s`

`20 m//s`

zero

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