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A ship is moving towards N-E with a velocity of 10 km/hr and to a passenger on board the windappears to blow from the north with a velocity of10√2 km/hr. Actual velocity of the wind is |
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Answer» vw-10√2j=10(i+J/√2)-vw-10√2j=5√2i+5√2j-vw(-10√2-5√2)j+(-5√2)i= -vw15√2j+5√2i=vwvw= 10√5km/hr |
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