{"id":7664,"date":"2015-09-06T18:00:19","date_gmt":"2015-09-06T16:00:19","guid":{"rendered":"https:\/\/sciencetonnante.wordpress.com\/?p=7664"},"modified":"2021-02-12T08:43:56","modified_gmt":"2021-02-12T07:43:56","slug":"jusquou-ira-le-record-du-monde-du-saut-a-la-perche-video","status":"publish","type":"post","link":"https:\/\/scienceetonnante.com\/blog\/2015\/09\/06\/jusquou-ira-le-record-du-monde-du-saut-a-la-perche-video\/","title":{"rendered":"Jusqu&rsquo;o\u00f9 ira le record du monde du saut \u00e0 la perche ? [Vid\u00e9o]"},"content":{"rendered":"<p>Voici ma derni\u00e8re vid\u00e9o, qui parle des limites physiques (et pas biologiques !) du record du monde du saut \u00e0 la perche.<\/p>\n<p><iframe title=\"Jusqu&#039;o\u00f9 ira le record du monde de saut \u00e0 la perche ?\" width=\"770\" height=\"433\" data-src=\"https:\/\/www.youtube.com\/embed\/HTI97yib_rw?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" data-load-mode=\"1\"><\/iframe><\/p>\n<p>Pour les lyc\u00e9ens fra\u00eechement rentr\u00e9s, l&rsquo;occasion de r\u00e9viser l&rsquo;\u00e9nergie cin\u00e9tique et l&rsquo;\u00e9nergie potentielle ! D&rsquo;ailleurs un truc sur lequel je n&rsquo;ai pas insist\u00e9 dans la vid\u00e9o, c&rsquo;est que la hauteur maximale qu&rsquo;on peut atteindre ne d\u00e9pend pas de la masse, puisque si on \u00e9crit l&rsquo;\u00e9galit\u00e9 du travail de la force de pesanteur et de l&rsquo;\u00e9nergie cin\u00e9tique, on a<\/p>\n<p style=\"text-align: center;\">\\(\\frac12 mv^2 = mgh\\)<\/p>\n<p>qui bien s\u00fbr donne<\/p>\n<p style=\"text-align: center;\">\\(\\frac{v^2}{2g}\\)<\/p>\n<p>qui ne d\u00e9pend que de la vitesse du perchiste.<\/p>\n<p>Sinon j&rsquo;avais un peu d\u00e9taill\u00e9 des trucs dans <a href=\"https:\/\/scienceetonnante.com\/blog\/2014\/02\/24\/jusquou-ira-le-record-de-saut-a-la-perche\/\">mon vieux billet sur le sujet<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Voici ma derni\u00e8re vid\u00e9o, qui parle des limites physiques (et pas biologiques !) du record du monde du saut \u00e0 la perche. Pour les lyc\u00e9ens fra\u00eechement rentr\u00e9s, l&rsquo;occasion de r\u00e9viser l&rsquo;\u00e9nergie cin\u00e9tique et l&rsquo;\u00e9nergie potentielle ! D&rsquo;ailleurs un truc sur lequel je n&rsquo;ai pas insist\u00e9 dans la vid\u00e9o, c&rsquo;est que la hauteur maximale qu&rsquo;on peut<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[6],"tags":[50,15],"class_list":{"0":"post-7664","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-physique","7":"tag-energie","8":"tag-mecanique"},"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/scienceetonnante.com\/blog\/wp-json\/wp\/v2\/posts\/7664","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/scienceetonnante.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/scienceetonnante.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/scienceetonnante.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/scienceetonnante.com\/blog\/wp-json\/wp\/v2\/comments?post=7664"}],"version-history":[{"count":1,"href":"https:\/\/scienceetonnante.com\/blog\/wp-json\/wp\/v2\/posts\/7664\/revisions"}],"predecessor-version":[{"id":9164,"href":"https:\/\/scienceetonnante.com\/blog\/wp-json\/wp\/v2\/posts\/7664\/revisions\/9164"}],"wp:attachment":[{"href":"https:\/\/scienceetonnante.com\/blog\/wp-json\/wp\/v2\/media?parent=7664"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/scienceetonnante.com\/blog\/wp-json\/wp\/v2\/categories?post=7664"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/scienceetonnante.com\/blog\/wp-json\/wp\/v2\/tags?post=7664"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}