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Referring to previous illustration, (a)if the width of tho giver is 0.5 km. find the displacement or the man in crossing mo hiver(b) what is the drift of the man? |
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Answer» Solution :(a)`AC=sqrt(AB^(2)+BC^(2))` `where AB=1//2kmand BC=(AB)/(V_(mW).V_(W))` put`v_(m)=4km//hr`, `v_(mw)=sqrt(v_(m)^(2)-v_(w)^(2))=sqrt(8^(2)-4^(2))=sqr48km//hr` (b) `BC=((AB)/(V_(mw)))v_(w)=((AB)(V_(w)))/sqrt((V_(OMEGA)^(2)-v_(w)^(2)))` Put `AB=(1//2)KM`, `v_(m)=4km//hr`,`v_(m)=8km//hr`t |
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