{"id":7831,"date":"2023-08-05T21:06:15","date_gmt":"2023-08-05T19:06:15","guid":{"rendered":"https:\/\/fizikaimatematika.com\/courses\/fizika-zadaci-sedmi-razred-sila-i-kretanje-prvi-deo\/lesson\/51-zadatak-aleksa-pocinje-iz-stanja-mirovanja\/"},"modified":"2023-08-05T21:06:15","modified_gmt":"2023-08-05T19:06:15","slug":"51-zadatak-aleksa-pocinje-iz-stanja-mirovanja","status":"publish","type":"lesson","link":"https:\/\/fizikaimatematika.com\/courses\/fizika-zadaci-sedmi-razred-sila-i-kretanje-prvi-deo\/lesson\/51-zadatak-aleksa-pocinje-iz-stanja-mirovanja\/","title":{"rendered":"51. zadatak: Aleksa po\u010dinje iz stanja mirovanja &#8230;"},"content":{"rendered":"<ul>\n<li>\u00a0\u0410\u043b\u0435\u043a\u0441\u0430 \u043f\u043e\u0447\u0438\u045a\u0435 \u0438\u0437 \u0441\u0442\u0430\u045a\u0430 \u043c\u0438\u0440\u043e\u0432\u0430\u045a\u0430 \u0441\u043f\u0443\u0448\u0442\u0430\u045a\u0435 \u0442\u0440\u043e\u0442\u0438\u043d\u0435\u0442\u043e\u043c \u043d\u0438\u0437 \u043d\u0438\u0437\u0431\u0440\u0434\u0438\u0446\u0443 \u0440\u0430\u0432\u043d\u043e\u043c\u0435\u0440\u043d\u043e \u0443\u0431\u0440\u0437\u0430\u043d\u0438\u043c \u043a\u0440\u0435\u0442\u0430\u045a\u0435\u043c. \u041d\u0430 \u043a\u0440\u0430\u0458\u0443 \u043d\u0438\u0437\u0431\u0440\u0434\u0438\u0446\u0435 \u043e\u0434\u043c\u0430\u0445 \u043f\u043e\u0447\u0438\u045a\u0435 \u0443\u0437\u0431\u0440\u0434\u0438\u0446\u0430 \u0438\u0441\u0442\u043e\u0433 \u043d\u0430\u0433\u0438\u0431\u0430 \u0438 \u0434\u0443\u0436\u0438\u043d\u0435 \u043a\u0430\u043e \u043d\u0438\u0437\u0431\u0440\u0434\u0438\u0446\u0430. \u0423\u0442\u0432\u0440\u0434\u0438\u043e \u0458\u0435 \u0434\u0430 \u0441\u0443 \u0432\u0440\u0435\u043c\u0435\u043d\u0430 \u043a\u0440\u0435\u0442\u0430\u045a\u0430 \u0438 \u043d\u0430 \u043d\u0438\u0437\u0431\u0440\u0434\u0438\u0446\u0438 \u0438 \u043d\u0430 \u0443\u0437\u0431\u0440\u0434\u0438\u0446\u0438 \u0458\u0435\u0434\u043d\u0430\u043a\u0430 \u0438 \u0438\u0437\u043d\u043e\u0441\u0435 \u043f\u043e 2 s. \u0410\u043a\u043e \u0441\u0443 \u0434\u0443\u0436\u0438\u043d\u0435 \u043d\u0438\u0437\u0431\u0440\u0434\u0438\u0446\u0435 \u0438 \u0443\u0437\u0431\u0440\u0434\u0438\u0446\u0435 \u0438\u0441\u0442\u0435 \u0438 \u0438\u0437\u043d\u043e\u0441\u0435 \u043f\u043e 10 m, \u0437\u0430\u043f\u0438\u0442\u0430\u043e \u0441\u0435 \u043a\u043e\u0458\u0435 \u0441\u0443 \u0458\u043e\u0448 \u0432\u0435\u043b\u0438\u0447\u0438\u043d\u0435 \u0458\u0435\u0434\u043d\u0430\u043a\u0435. \u0422\u0438 \u0438\u043c\u0430\u0448 \u0437\u0430\u0434\u0430\u0442\u0430\u043a \u0434\u0430 \u043e\u0434\u0440\u0435\u0434\u0438\u0448: \u0418\u043d\u0442\u0435\u043d\u0437\u0438\u0442\u0435\u0442\u0435 \u043e\u0431\u0430 \u0443\u0431\u0440\u0437\u0430\u045a\u0430, \u043a\u0440\u0430\u0458\u045a\u0443 \u0431\u0440\u0437\u0438\u043d\u0443 \u043d\u0430 \u043d\u0438\u0437\u0431\u0440\u0434\u0438\u0446\u0438 \u0438 \u043f\u043e\u0447\u0435\u0442\u043d\u0443 \u0431\u0440\u0437\u0438\u043d\u0443 \u043d\u0430 \u0443\u0437\u0431\u0440\u0434\u0438\u0446\u0438, \u043a\u0430\u043e \u0438 \u0441\u0440\u0435\u0434\u045a\u0435 \u0431\u0440\u0437\u0438\u043d\u0435 \u043d\u0430 \u043d\u0438\u0437\u0431\u0440\u0434\u0438\u0446\u0438 \u0438 \u0443\u0437\u0431\u0440\u0434\u0438\u0446\u0438. \u041d\u0430 \u043a\u0440\u0430\u0458\u0443 \u0438\u0437\u0440\u0430\u0447\u0443\u043d\u0430\u0458 \u0441\u0440\u0435\u0434\u045a\u0443 \u0431\u0440\u0437\u0438\u043d\u0443 \u043a\u0440\u0435\u0442\u0430\u045a\u0430 \u0434\u0443\u0436 \u0446\u0435\u043b\u043e\u0433 \u043f\u0443\u0442\u0430.<\/li>\n<li>Aleksa po\u010dinje iz stanja mirovanja spu\u0161tanje trotinetom niz nizbrdicu ravnomerno ubrzanim kretanjem. Na kraju nizbrdice odmah po\u010dinje uzbrdica istog nagiba i du\u017eine kao nizbrdica. Utvrdio je da su vremena kretanja i na nizbrdici i na uzbrdici jednaka i iznose po 2 s. Ako su du\u017eine nizbrdice i uzbrdice iste i iznose po 10 m, zapitao se koje su jo\u0161 veli\u010dine jednake. Ti ima\u0161 zadatak da odredi\u0161: Intenzitete oba ubrzanja, krajnju brzinu na nizbrdici i po\u010detnu brzinu na uzbrdici, kao i srednje brzine na nizbrdici i uzbrdici. Na kraju izra\u010dunaj srednju brzinu kretanja du\u017e celog puta.<\/li>\n<\/ul>\n","protected":false},"comment_status":"open","ping_status":"closed","template":"","_links":{"self":[{"href":"https:\/\/fizikaimatematika.com\/index.php\/wp-json\/wp\/v2\/lesson\/7831"}],"collection":[{"href":"https:\/\/fizikaimatematika.com\/index.php\/wp-json\/wp\/v2\/lesson"}],"about":[{"href":"https:\/\/fizikaimatematika.com\/index.php\/wp-json\/wp\/v2\/types\/lesson"}],"replies":[{"embeddable":true,"href":"https:\/\/fizikaimatematika.com\/index.php\/wp-json\/wp\/v2\/comments?post=7831"}],"wp:attachment":[{"href":"https:\/\/fizikaimatematika.com\/index.php\/wp-json\/wp\/v2\/media?parent=7831"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}