A boat is moving with a velocity `(3hati+4hatj)` with respect to ground. The water in river is flowing with a velocity `(-2hati-4hatj)` with respect to ground.
What is the relative velocity of boat with respect to river ?

Explanation

To find the relative velocity of the boat with respect to the river, we can follow these steps:

### Step 1: Identify the velocities
- The velocity of the boat with respect to the ground is given as:
\[ \vec{V}_{\text{boat}} = 3\hat{i} + 4\hat{j} \]
- The velocity of the river (water) with respect to the ground is given as:
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