{"id":255921,"date":"2016-08-05T02:00:00","date_gmt":"2016-08-04T23:00:00","guid":{"rendered":"http:\/\/www.fyysika.ee\/?guid=9476ff8d86d9621708cee463aa900a1f"},"modified":"2016-08-05T02:00:00","modified_gmt":"2016-08-04T23:00:00","slug":"the-rain-powered-cart","status":"publish","type":"post","link":"https:\/\/www.fyysika.ee\/?p=255921","title":{"rendered":"The rain-powered cart"},"content":{"rendered":"<p>A frictionless cart in the shape of a right triangle (with the vertical side forward) is elastically<br \/>\nimpacted by vertically falling raindrops. The speed of the cart as a function of time can be<br \/>\nanalytically deduced as an exercise in the use of trigonometric and hyperbolic functions. A<br \/>\ncharacteristic time defines the approach to a terminal speed which is a sizeable fraction of the<br \/>\nspeed of the rain. The treatment is accessible to a student in a calculus-based mechanics course.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A frictionless cart in the shape of a right triangle (with the vertical side forward) is elastically<br \/>\nimpacted by vertically falling raindrops. The speed of the cart as a function of time can be<br \/>\nanalytically deduced as an exercise in the use of trigon&#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-255921","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\/255921","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=255921"}],"version-history":[{"count":0,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/255921\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=255921"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=255921"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=255921"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}