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
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a
8j^
b
−6i^−8j^
c
6i^+8j^
d
52
answer is C.
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Detailed Solution
Relative velocity of boat with respect to water isv→b−v→w=3i^+4j^−(−3i^−4j^)=6i^+8j^