{"id":80204,"date":"2015-04-23T03:00:00","date_gmt":"2015-04-23T00:00:00","guid":{"rendered":"http:\/\/www.fyysika.ee\/?guid=015b05ff7a1794ba22ea32de47c0135f"},"modified":"2015-04-23T03:00:00","modified_gmt":"2015-04-23T00:00:00","slug":"dynamics-of-a-sliding-ladder-leaning-against-a-wall","status":"publish","type":"post","link":"https:\/\/www.fyysika.ee\/?p=80204","title":{"rendered":"Dynamics of a sliding ladder leaning against a wall"},"content":{"rendered":"<p>This study is about the dynamics of a sliding ladder leaning against a vertical wall. The results<br \/>\nare understood by considering the motion divided in two parts: (i) for ##IMG##<br \/>\n[http:\/\/ej.iop.org\/images\/0031-9120\/50\/3\/329\/ped510699ieqn001.gif] {$0leq tleq {{t}_{s}}$} with<br \/>\none degree of freedom, and (ii) for ##IMG##<br \/>\n[http:\/\/ej.iop.org\/images\/0031-9120\/50\/3\/329\/ped510699ieqn002.gif] {$t>{{t}_{s}}$} with two degrees<br \/>\nof freedom, where the separation is determined by the instance ##IMG##<br \/>\n[http:\/\/ej.iop.org\/images\/0031-9120\/50\/3\/329\/ped510699ieqn003.gif] {${{t}_{s}},$} when the ladder<br \/>\nloses its contact with the wall. The observed experimental details are explained by appealing a<br \/>\nsimple model based on elementary notions of mechanics. We emphasize some features, such as a maximum<br \/>\nof the x component of the velocity and of the acceleration of the centre of mass in the first part,<br \/>\nand a minimum of the normal react&#8230;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>This study is about the dynamics of a sliding ladder leaning against a vertical wall. The results<br \/>\nare understood by considering the motion divided in two parts: (i) for ##IMG##<br \/>\n[http:\/\/ej.iop.org\/images\/0031-9120\/50\/3\/329\/ped510699ieqn001.gif] {$0leq tleq {{t}_{s}}$} with<br \/>\none degree of freedom, and (ii) for ##IMG##<br \/>\n[http:\/\/ej.iop.org\/images\/0031-9120\/50\/3\/329\/ped510699ieqn002.gif] {$t&gt;{{t}_{s}}$} with two degrees<br \/>\nof freedom, where the separation is determined by the instance ##IMG##<br \/>\n[http:\/\/ej.iop.org\/images\/0031-9120\/50\/3\/329\/ped510699ieqn003.gif] {${{t}_{s}},$} when the ladder<br \/>\nloses its contact with the wall. The observed experimental details are explained by appealing a<br \/>\nsimple model based on elementary notions of mechanics. We emphasize some features, such as a maximum<br \/>\nof the x component of the velocity and of the acceleration of the centre of mass in the first part,<br \/>\nand a minimum of the normal react&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[178],"tags":[],"class_list":{"0":"post-80204","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-rss-fuusikaharidus","7":"entry"},"_links":{"self":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/80204","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=80204"}],"version-history":[{"count":0,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/80204\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=80204"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=80204"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=80204"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}