{"id":1961,"date":"2014-08-27T10:58:39","date_gmt":"2014-08-27T08:58:39","guid":{"rendered":"http:\/\/www.zsvltava.cz\/fyzika\/?p=1961"},"modified":"2025-03-19T19:48:24","modified_gmt":"2025-03-19T18:48:24","slug":"x-51a-waverider","status":"publish","type":"post","link":"https:\/\/www.zsvltava.cz\/fyzika\/?p=1961","title":{"rendered":"X-51A Waverider"},"content":{"rendered":"<p><a href=\"http:\/\/en.wikipedia.org\/wiki\/WaveRider\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.zsvltava.cz\/fyzika\/wp-content\/uploads\/2014\/03\/X51waverider.jpg\" alt=\"OLYMPUS DIGITAL CAMERA\" width=\"550\" height=\"302\" class=\"alignnone size-full wp-image-1962\" srcset=\"https:\/\/www.zsvltava.cz\/fyzika\/wp-content\/uploads\/2014\/03\/X51waverider.jpg 550w, https:\/\/www.zsvltava.cz\/fyzika\/wp-content\/uploads\/2014\/03\/X51waverider-150x82.jpg 150w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/p>\n<p>Speci\u00e1ln\u00ed letadlo <em>X-51A Waverider<\/em> vyvinut\u00e9 spole\u010dnost\u00ed Boeing dos\u00e1hlo p\u0159i testovac\u00edm letu rychlosti p\u0159esahuj\u00edc\u00ed p\u011btkr\u00e1t rychlost zvuku &#8211; Mach 5,1 &#8211; a let\u011blo \u010dty\u0159i minuty. (Mach vyjad\u0159uje n\u00e1sobek rychlosti zvuku.)<\/p>\n<ol type=\"1\">\n<li>Vyj\u00e1d\u0159i v km\/h jakou maxim\u00e1ln\u00ed rychlost\u00ed letadlo let\u011blo.<\/li>\n<li>Kolik kilometr\u016f prost\u0159edek urazil za uveden\u00e9 4 minuty?<\/li>\n<li>Jak dlouho by trvalo letadlu oblet\u011bt Zemi ve v\u00fd\u0161ce 15 km nad mo\u0159em?<\/li>\n<li>Jak by se oproti p\u0159edchoz\u00ed variant\u011b zkr\u00e1til \u010das obletu ve v\u00fd\u0161ce 2 km?<\/li>\n<\/ol>\n<p>Pr\u016fm\u011brn\u00fd polom\u011br pevn\u00e9 \u010d\u00e1sti Zem\u011b je 6356 km.<\/p>\n<p><small>P\u0159\u00edsp\u011bvek byl inspirov\u00e1n \u010d\u00e1nkem z <a href=\"http:\/\/www.national-geographic.cz\/detail\/experimentalni-x-51a-prekrocil-petkrat-rychlost-zvuku-42216\/\">www.national-geographic.cz<\/a><\/small><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Speci\u00e1ln\u00ed letadlo X-51A Waverider vyvinut\u00e9 spole\u010dnost\u00ed Boeing dos\u00e1hlo p\u0159i testovac\u00edm letu rychlosti p\u0159esahuj\u00edc\u00ed p\u011btkr\u00e1t rychlost zvuku &#8211; Mach 5,1 &#8211; a let\u011blo \u010dty\u0159i minuty. (Mach &#8230;. <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[34,43,13],"tags":[28],"class_list":["post-1961","post","type-post","status-publish","format-standard","hentry","category-pohyb","category-priklady-pro-8-rocnik","category-zajimavosti","tag-vypocet-rychlosti"],"_links":{"self":[{"href":"https:\/\/www.zsvltava.cz\/fyzika\/index.php?rest_route=\/wp\/v2\/posts\/1961","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.zsvltava.cz\/fyzika\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zsvltava.cz\/fyzika\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zsvltava.cz\/fyzika\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zsvltava.cz\/fyzika\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1961"}],"version-history":[{"count":0,"href":"https:\/\/www.zsvltava.cz\/fyzika\/index.php?rest_route=\/wp\/v2\/posts\/1961\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.zsvltava.cz\/fyzika\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1961"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zsvltava.cz\/fyzika\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1961"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zsvltava.cz\/fyzika\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1961"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}