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Zdravím potřeboval bych poradit s ukolem do školy.Potřebuju zjistit odpovědi na tyto dvě otázky: Vysvětlete princip vrtulníku? Proč pro let musí lopatky rotovat? Prosím aby odpovědi byli pochopitelné a krátké nepatřím mezi nejchytřejší Děkuji
URL : https://www.valka.cz/Princip-vrtulniku-t219836#614748
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Tam toho je docela hodně a připadá mi to moc složité
URL : https://www.valka.cz/Princip-vrtulniku-t219836#614753
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jinymi slovy, listy vrtule maji podobny tvar, jako kridlo, tedy jsou "vypoukle". Tim, ze se toci, proletavaji vzduchem, stejne jako kridlo, a uplne stejne jako v pripade kridla u techto listu dochazi ke vztlaku, tedy sile, ktera tahne cely vrtulnik nahoru. Diky delce, tvaru a rychlosti listu je pak tento vztlak vetsi ci mensi. Naklanenim listu se pak vrtulnik ridi, co se smeru tyce.
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Reklama
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Díval jsem se moc jsem z toho nepobral
URL : https://www.valka.cz/Princip-vrtulniku-t219836#614756
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jinymi slovy, listy vrtule maji podobny tvar, jako kridlo, tedy jsou "vypoukle". Tim, ze se toci, proletavaji vzduchem, stejne jako kridlo, a uplne stejne jako v pripade kridla u techto listu dochazi (diky obtekani vzduchu podel jeho tvaru, cimz tlaci vzduch "dolu" a v reakci je pak tlaceno kridlo "nahoru", viz kridlo z profilu) ke vztlaku, tedy sile, ktera tahne cely vrtulnik nahoru. Diky delce, tvaru a rychlosti listu je pak tento vztlak vetsi ci mensi. Naklanenim listu se pak vrtulnik ridi, co se smeru tyce.
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Super díky moc a odpověd na 2 otázku?
URL : https://www.valka.cz/Princip-vrtulniku-t219836#614759
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jsou tam obe odpovedi, staci si to jen poradne precist ...
URL : https://www.valka.cz/Princip-vrtulniku-t219836#614760
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Mohl by jsi mi je označit? já jsem fakt blbec
URL : https://www.valka.cz/Princip-vrtulniku-t219836#614762
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mno ... zkus se spis sam zamyslet nad tim, co by se stalo, kdyby lopatky nerotovaly, kdyby se nic netocilo ... co by se asi stalo (resp. nestalo)? co by NEVZNIKLO, k cemu by NEDOCHAZELO? nikdo neni uplne blbej, obvykle jen linej premyslet ...
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Nedošlo by ke vztlaku(síle)?
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bingo presne tak, pokud se nic netoci, vzduch kolem lopatek neproudi, lopatky ho nestlacuji a tudiz nevznika vztlak
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díky moc snad dostanu dobrou znamku
URL : https://www.valka.cz/Princip-vrtulniku-t219836#614766
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