{"id":235,"date":"2024-04-26T12:48:58","date_gmt":"2024-04-26T11:48:58","guid":{"rendered":"https:\/\/classk12.in\/?p=235"},"modified":"2024-04-26T14:50:19","modified_gmt":"2024-04-26T13:50:19","slug":"friction","status":"publish","type":"post","link":"https:\/\/classk12.in\/index.php\/2024\/04\/26\/friction\/","title":{"rendered":"FRICTION"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"235\" class=\"elementor elementor-235\">\n\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-d1e2856 e-flex e-con-boxed e-con e-parent\" data-id=\"d1e2856\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\" data-core-v316-plus=\"true\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6988495 elementor-widget elementor-widget-text-editor\" data-id=\"6988495\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.16.0 - 20-09-2023 *\/\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#69727d;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#69727d;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}<\/style>\t\t\t\t<p style=\"text-align: center;\">Whenever surface of a body tend to move on or actually moves relative to another \u00a0surface in contact, an opposing force is generated between the surfaces. This phenomenon is called <strong>\u2018friction\u2019<\/strong> and the opposing force is called <strong>frictional force<\/strong>.<\/p><p>There are of three types of friction:<\/p><ol><li>Static Friction.<\/li><li>Sliding Friction or Kinetic Friction.<\/li><li>Rolling Friction.<\/li><\/ol>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2e345f8 elementor-widget elementor-widget-text-editor\" data-id=\"2e345f8\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<h3><span style=\"color: #000080;\">Properties of Static Friction<\/span><\/h3>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ba388ec elementor-widget elementor-widget-text-editor\" data-id=\"ba388ec\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<ol><li>Force of static friction is a contact force.<\/li><li>Force of static frictions is generated tangential to the surfaces in contact and it is in the direction opposite to the direction in which body tend to move.<\/li><li>Force of static friction is a self adjusting force i.e. it can adjust its value according to the net external force acting on the body up to a maximum limit. This maximum limit up to which the force of static friction can increases its value is known as <span style=\"color: #000080;\"><strong>limiting force of static friction<\/strong><\/span> [f<sub>sm<\/sub> or f<sub>s<\/sub><sup> max<\/sup>]<\/li><li>The value of f<sub>sm<\/sub> doesn\u2019t depend upon the area of contact between the two surfaces.<\/li><li>Value of f<sub>sm<\/sub> is directly proportional to the normal force acting between the two force i.e.\u00a0 \u00a0 \u00a0 \u00a0f<sub>sm<\/sub> \u221d N<\/li><\/ol><p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Or\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <span style=\"color: #000080;\"><strong>f<sub>sm<\/sub> = \u03bc<sub>s<\/sub> N\u00a0<\/strong><\/span>\u00a0 \u00a0 &#8230;&#8230;&#8230;.\u2026\u2026\u2026..(1)<\/p><p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Where \u03bc<sub>s <\/sub>is a constant for the pair of surfaces in contact and it is called \u2018coefficient of static friction\u2019.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b6daec4 elementor-widget elementor-widget-text-editor\" data-id=\"b6daec4\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<h2 style=\"text-align: center;\"><span style=\"color: #000080;\">Static Friction (Video)<\/span><\/h2>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-aecdf99 elementor-widget elementor-widget-video\" data-id=\"aecdf99\" data-element_type=\"widget\" data-settings=\"{&quot;video_type&quot;:&quot;vimeo&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.16.0 - 20-09-2023 *\/\n.elementor-widget-video .elementor-widget-container{overflow:hidden;transform:translateZ(0)}.elementor-widget-video .elementor-wrapper{aspect-ratio:var(--video-aspect-ratio)}.elementor-widget-video .elementor-wrapper iframe,.elementor-widget-video .elementor-wrapper video{height:100%;width:100%;display:flex;border:none;background-color:#000}@supports not (aspect-ratio:1\/1){.elementor-widget-video .elementor-wrapper{position:relative;overflow:hidden;height:0;padding-bottom:calc(100% \/ var(--video-aspect-ratio))}.elementor-widget-video .elementor-wrapper iframe,.elementor-widget-video .elementor-wrapper video{position:absolute;top:0;right:0;bottom:0;left:0}}.elementor-widget-video .elementor-open-inline .elementor-custom-embed-image-overlay{position:absolute;top:0;right:0;bottom:0;left:0;background-size:cover;background-position:50%}.elementor-widget-video .elementor-custom-embed-image-overlay{cursor:pointer;text-align:center}.elementor-widget-video .elementor-custom-embed-image-overlay:hover .elementor-custom-embed-play i{opacity:1}.elementor-widget-video .elementor-custom-embed-image-overlay img{display:block;width:100%;aspect-ratio:var(--video-aspect-ratio);-o-object-fit:cover;object-fit:cover;-o-object-position:center center;object-position:center center}@supports not (aspect-ratio:1\/1){.elementor-widget-video .elementor-custom-embed-image-overlay{position:relative;overflow:hidden;height:0;padding-bottom:calc(100% \/ var(--video-aspect-ratio))}.elementor-widget-video .elementor-custom-embed-image-overlay img{position:absolute;top:0;right:0;bottom:0;left:0}}.elementor-widget-video .e-hosted-video .elementor-video{-o-object-fit:cover;object-fit:cover}.e-con-inner>.elementor-widget-video,.e-con>.elementor-widget-video{width:var(--container-widget-width);--flex-grow:var(--container-widget-flex-grow)}<\/style>\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<iframe class=\"elementor-video-iframe\" allowfullscreen title=\"vimeo Video Player\" src=\"https:\/\/player.vimeo.com\/video\/551521375?color&amp;autopause=0&amp;loop=0&amp;muted=0&amp;title=1&amp;portrait=1&amp;byline=1#t=\"><\/iframe>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-824207a elementor-widget elementor-widget-text-editor\" data-id=\"824207a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<h2><span style=\"color: #000080;\">Angle of Repose (\u03b8<sub>c<\/sub>)<\/span><\/h2>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1b21212 elementor-widget elementor-widget-text-editor\" data-id=\"1b21212\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Maximum angle of inclination upto which a block kept on the inclined surface can remain at rest is known as angle of repose . Also above this angle the block starts sliding down due to its own weight.<\/p><p>Value of angle of repose depends upon the value of coefficient of static friction<\/p><p>Or,\u00a0 \u00a0 \u03bc<sub>s<\/sub> = tan\u03b8<sub>c<\/sub> \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u2026\u2026\u2026..(2)<\/p><p>Or\u00a0\u00a0\u00a0\u00a0\u00a0 \u03b8<sub>c<\/sub> = tan<sup>-1<\/sup>\u03bc<sub>s<\/sub>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0\u00a0 \u2026\u2026\u2026..(3)<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0b5f684 elementor-widget elementor-widget-text-editor\" data-id=\"0b5f684\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<h2 style=\"text-align: center;\"><span style=\"color: #000080;\">Angle of Repose (Video)<\/span><\/h2>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6c1ce81 elementor-widget elementor-widget-video\" data-id=\"6c1ce81\" data-element_type=\"widget\" data-settings=\"{&quot;video_type&quot;:&quot;vimeo&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<iframe class=\"elementor-video-iframe\" allowfullscreen title=\"vimeo Video Player\" src=\"https:\/\/player.vimeo.com\/video\/551537251?color&amp;autopause=0&amp;loop=0&amp;muted=0&amp;title=1&amp;portrait=1&amp;byline=1#t=\"><\/iframe>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Whenever surface of a body tend to move on or actually moves relative to another \u00a0surface in contact, an opposing force is generated between the surfaces. This phenomenon is called \u2018friction\u2019 and the opposing force is called frictional force. There are of three types of friction: Static Friction. Sliding Friction or Kinetic Friction. Rolling Friction. &#8230; <a title=\"FRICTION\" class=\"read-more\" href=\"https:\/\/classk12.in\/index.php\/2024\/04\/26\/friction\/\" aria-label=\"More on FRICTION\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[1],"tags":[],"post_folder":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/classk12.in\/index.php\/wp-json\/wp\/v2\/posts\/235"}],"collection":[{"href":"https:\/\/classk12.in\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/classk12.in\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/classk12.in\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/classk12.in\/index.php\/wp-json\/wp\/v2\/comments?post=235"}],"version-history":[{"count":13,"href":"https:\/\/classk12.in\/index.php\/wp-json\/wp\/v2\/posts\/235\/revisions"}],"predecessor-version":[{"id":250,"href":"https:\/\/classk12.in\/index.php\/wp-json\/wp\/v2\/posts\/235\/revisions\/250"}],"wp:attachment":[{"href":"https:\/\/classk12.in\/index.php\/wp-json\/wp\/v2\/media?parent=235"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/classk12.in\/index.php\/wp-json\/wp\/v2\/categories?post=235"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/classk12.in\/index.php\/wp-json\/wp\/v2\/tags?post=235"},{"taxonomy":"post_folder","embeddable":true,"href":"https:\/\/classk12.in\/index.php\/wp-json\/wp\/v2\/post_folder?post=235"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}