A boat is moving with a velocity $3i + 4j $ with respect to ground. The water in the river is moving with a velocity $-3i -4j $ with respect to ground. The relative velocity of the boat with respect to water is
$8j$
$-6i -8j$
$6i +8j$
$5\sqrt 2 $
A boat is moving with a velocity $3i + 4j $ with respect to ground. The water in the river is moving with a velocity $-3i -4j $ with respect to ground. The relative velocity of the boat with respect to water is
Relative velocity $= (3i + 4j) -(-3i -4j) = 6i + 8j$