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-- 4. A car is moving eastward with a speed of 54 km/h, while wind is blowing northwards with a speed of 36 km/h. A flag on the car will flutter in the direction:
A
tan⁻¹(2/3) West of South
B
tan⁻¹(2/3) North of East
C
tan⁻¹(2/3) North of West
D
tan⁻¹(2/3) East of North
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-- 3. A river is flowing with a velocity V_R = 4î m/s. A boat is moving with a v

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