{"id":6158,"date":"2025-10-09T08:01:17","date_gmt":"2025-10-09T06:01:17","guid":{"rendered":"https:\/\/www.zsvltava.cz\/fyzika\/?p=6158"},"modified":"2025-10-22T20:00:53","modified_gmt":"2025-10-22T18:00:53","slug":"8-prikladu-na-vypocet-vykonu","status":"publish","type":"post","link":"https:\/\/www.zsvltava.cz\/fyzika\/?p=6158","title":{"rendered":"8 p\u0159\u00edklad\u016f na v\u00fdpo\u010det v\u00fdkonu"},"content":{"rendered":"

V\u00fdkon ur\u010duje mno\u017estv\u00ed vykonan\u00e9 pr\u00e1ce za jednotku \u010dasu<\/strong>.<\/p>\n

V\u0161echny v\u00fdpo\u010dty vych\u00e1zej\u00ed z variant z\u00e1kladn\u00edho vztahu pro v\u00fdpo\u010det v\u00fdkonu:<\/p>\n

  <\/span>   <\/span>\"\[<\/p>\n

\n
    \n
  1. Motor vykonal pr\u00e1ci 12 000 J za 20 s. Jak\u00fd byl jeho v\u00fdkon?<\/li>\n
  2. Elektrick\u00e1 \u017e\u00e1rovka spot\u0159ebuje energii 900 J za 3 s. Jak\u00fd m\u00e1 v\u00fdkon?<\/li>\n
  3. Motor m\u00e1 v\u00fdkon 800 W a b\u011b\u017eel 25 s. Jakou pr\u00e1ci vykonal?<\/li>\n
  4. Jak dlouho bude trvat 200 W p\u0159\u00edstroji spot\u0159ebovat energii 50 J?<\/li>\n
  5. Mix\u00e9r spot\u0159eboval 6 000 J energie za 10 s. S jak\u00fdm v\u00fdkonem pracoval?<\/li>\n
  6. Elektrick\u00e9 \u010derpadlo m\u00e1 v\u00fdkon 2,5 kW a pracovalo 40 s. Jakou pr\u00e1ci vykonalo?<\/li>\n
  7. \u017d\u00e1rovka o v\u00fdkonu 60 W sv\u00edt\u00ed 300 s. Kolik energie spot\u0159ebuje?<\/li>\n
  8. Jak rychle mus\u00edme vykonat pr\u00e1ci 2000 J abychom m\u011bli v\u00fdkon 1000 W?<\/li>\n<\/ol>\n

    – +10 p\u0159\u00edklad\u016f v\u010detn\u011b v\u00fdsledk\u016f<\/a>
    \n–     Pr\u00e1ce<\/a> | V\u00fdkon<\/a> | Postup p\u0159i \u0159e\u0161en\u00ed p\u0159\u00edklad\u016f<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

    V\u00fdkon ur\u010duje mno\u017estv\u00ed vykonan\u00e9 pr\u00e1ce za jednotku \u010dasu. V\u0161echny v\u00fdpo\u010dty vych\u00e1zej\u00ed z variant z\u00e1kladn\u00edho vztahu pro v\u00fdpo\u010det v\u00fdkonu:     Motor vykonal pr\u00e1ci 12 000 …. <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[42,44,43],"tags":[23],"class_list":["post-6158","post","type-post","status-publish","format-standard","hentry","category-8-rocnik-2","category-prace-a-energie","category-priklady-pro-8-rocnik","tag-reseny-priklad"],"_links":{"self":[{"href":"https:\/\/www.zsvltava.cz\/fyzika\/index.php?rest_route=\/wp\/v2\/posts\/6158","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=6158"}],"version-history":[{"count":13,"href":"https:\/\/www.zsvltava.cz\/fyzika\/index.php?rest_route=\/wp\/v2\/posts\/6158\/revisions"}],"predecessor-version":[{"id":6246,"href":"https:\/\/www.zsvltava.cz\/fyzika\/index.php?rest_route=\/wp\/v2\/posts\/6158\/revisions\/6246"}],"wp:attachment":[{"href":"https:\/\/www.zsvltava.cz\/fyzika\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6158"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zsvltava.cz\/fyzika\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6158"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zsvltava.cz\/fyzika\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6158"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}