{"id":1614,"date":"2024-12-09T12:31:19","date_gmt":"2024-12-09T11:31:19","guid":{"rendered":"http:\/\/www.zsvltava.cz\/fyzika\/?p=1614"},"modified":"2025-04-10T07:28:07","modified_gmt":"2025-04-10T05:28:07","slug":"priklady-s-gravitacni-silou","status":"publish","type":"post","link":"https:\/\/www.zsvltava.cz\/fyzika\/?p=1614","title":{"rendered":"P\u0159\u00edklady s gravita\u010dn\u00ed s\u00edlou"},"content":{"rendered":"<ol type=\"1\" class=\"ns_priklady\">\n<li>Lud\u011bk by se r\u00e1d nechal un\u00e1\u0161et bal\u00f3nkma jako v poh\u00e1dce Vzh\u016fru do oblak. 1 Bal\u00f3nek dok\u00e1\u017ee p\u016fsobit silou 0,1 N. Kolik by 22kg Lud\u011bk pot\u0159eboval bal\u00f3nk\u016f, aby se vznesl?\n<\/li>\n<li>Dok\u00e1\u017e\u00ed 3 psi (ka\u017ed\u00fd m\u016f\u017ee p\u016fsobit silou 50 N) odtla\u010dit dve\u0159e, kter\u00e9 jsou vyrobeny z 10 prken, ka\u017ed\u00e9 o hmotnosti 1 kg?<\/li>\n<li>2 d\u0159evorubci zvedaj\u00ed 80kg kl\u00e1du, kter\u00e1 le\u017e\u00ed na zemi. Jeden p\u016fsob\u00ed silou 360 N. Jakou s\u00edlu mus\u00ed vyvinout ten druh\u00fd, aby se kl\u00e1da nadzdvihla nad zem?<\/li>\n<li>Na planet\u011b Jupiter by na 30 kg \u010dlov\u011bka p\u016fsobila gravita\u010dn\u00ed s\u00edla 780 N. Jakou hodnotu m\u00e1 gravita\u010dn\u00ed konstanta <em>g<\/em> t\u00e9to planety?<\/li>\n<li>2 lod\u011b t\u00e1hnou spole\u010dn\u011b n\u00e1klad, kter\u00fd plave mezi nimi. Ka\u017ed\u00e1 z lod\u00ed p\u016fsob\u00ed silou 10 kN. Je v\u00fdhodn\u011bj\u0161\u00ed, aby byly lod\u011b d\u00e1le od sebe a nebo naopak, aby pluly co nejbl\u00ed\u017ee?<\/li>\n<\/ol>\n<h3>Vzh\u016fru do oblak!<\/h3>\n<p>Uk\u00e1zka z filmu, kter\u00fdm je inspirov\u00e1no zad\u00e1n\u00ed prvn\u00edho p\u0159\u00edkladu.<\/p>\n<p><iframe loading=\"lazy\" width=\"420\" height=\"315\" src=\"\/\/www.youtube.com\/embed\/6Ct9Ote-sfA?rel=0\" frameborder=\"0\" allowfullscreen><\/iframe><\/p>\n<p>Zd\u00e1 se v\u00e1m to to nemo\u017en\u00e9? Americk\u00e9mu vzduchoplavci <a href=\"http:\/\/clusterballoon.com\/\">Jonathanu Trappeovi<\/a> nikoliv.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Lud\u011bk by se r\u00e1d nechal un\u00e1\u0161et bal\u00f3nkma jako v poh\u00e1dce Vzh\u016fru do oblak. 1 Bal\u00f3nek dok\u00e1\u017ee p\u016fsobit silou 0,1 N. Kolik by 22kg Lud\u011bk pot\u0159eboval &#8230;. <\/p>\n","protected":false},"author":1,"featured_media":2721,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[40,35],"tags":[],"class_list":["post-1614","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-priklady-pro-7-rocnik","category-sila"],"_links":{"self":[{"href":"https:\/\/www.zsvltava.cz\/fyzika\/index.php?rest_route=\/wp\/v2\/posts\/1614","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=1614"}],"version-history":[{"count":0,"href":"https:\/\/www.zsvltava.cz\/fyzika\/index.php?rest_route=\/wp\/v2\/posts\/1614\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.zsvltava.cz\/fyzika\/index.php?rest_route=\/wp\/v2\/media\/2721"}],"wp:attachment":[{"href":"https:\/\/www.zsvltava.cz\/fyzika\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1614"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zsvltava.cz\/fyzika\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1614"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zsvltava.cz\/fyzika\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1614"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}