A boat is moving with a velocity 3 hat i...

A boat is moving with a velocity `3 hat i+ 4hat j` with respect to ground. The water in the river is moving with a velocity `-3 hat i - 4 hat j` with respect to ground. The relative velocity of the boat with respect to water is.

`8hatj`

`-6hatj-8hatj`

`6hat+8hatj`

`5sqrt(2i)`

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