{"id":592,"date":"2020-04-08T04:34:10","date_gmt":"2020-04-08T04:34:10","guid":{"rendered":"https:\/\/books.compclassnotes.com\/rothphys110-2e\/?p=592"},"modified":"2021-06-28T22:12:07","modified_gmt":"2021-06-28T22:12:07","slug":"sections-9-4-9-5","status":"publish","type":"post","link":"https:\/\/books.compclassnotes.com\/rothphys110-2e\/2020\/04\/08\/sections-9-4-9-5\/","title":{"rendered":"Chapter 9: Force"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">9.4: Problem solving steps<\/h2>\n\n\n\n<p>We\u2019ll follow the same problem-solving steps as with problems dealing with conservation laws, but this time we\u2019ll add an intermediate step between the drawing and the math:<\/p>\n\n\n\n<ol class=\"wp-block-list\"><li> Draw a picture.<ol><li> Using your picture, draw a <em>free body diagram<\/em> that represents the forces acting on one particular object.<\/li><\/ol><\/li><li> Using your free body diagram, apply Newton\u2019s second law.<\/li><li> Solve. <\/li><\/ol>\n\n\n\n<p>A free body diagram (FBD) is a problem-solving tool that we\u2019ll use to bridge the gap between the very visual and intuitive picture, and the more abstract mathematical representation. To draw a free body diagram, represent your object as a single point, then draw arrows coming from that point that represent the different forces acting on that particular object. You also need to include coordinate axes for reference.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Example<\/h4>\n\n\n\n<!-- iframe plugin v.6.0 wordpress.org\/plugins\/iframe\/ -->\n<iframe loading=\"lazy\" src=\"https:\/\/my.compclassnotes.com\/canonical\/PHYS110\/PHYS110_book_ch9_3_EXMPL\" width=\"100%\" height=\"1300\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"yes\" class=\"iframe-class\" frameborder=\"0\"><\/iframe>\n\n\n\n\n<h4 class=\"wp-block-heading\">Practice<\/h4>\n\n\n\n<!-- iframe plugin v.6.0 wordpress.org\/plugins\/iframe\/ -->\n<iframe loading=\"lazy\" src=\"https:\/\/my.compclassnotes.com\/canonical\/PHYS110\/PHYS110_book_ch9v2_newtonlaw_prac_v6\" width=\"100%\" height=\"800\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"yes\" class=\"iframe-class\" frameborder=\"0\"><\/iframe>\n\n\n\n\n<h2 class=\"wp-block-heading\">9.5 Mechanical equilibrium<\/h2>\n\n\n\n<p>An object (or group of objects) is said to be in&nbsp;<em>mechanical equilibrium<\/em>&nbsp;when the net force on it is zero. You could also describe this in terms of an object\u2019s motion, considering Newton\u2019s second law: an object is in mechanical equilibrium when it is not accelerating.<\/p>\n\n\n\n<p>This describes many things that we encounter in the world around us. For example, take a look at any building\u2014if any piece of a building has an acceleration other than zero, you do not want to be in or near that building!<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Example<\/h4>\n\n\n\n<!-- iframe plugin v.6.0 wordpress.org\/plugins\/iframe\/ -->\n<iframe loading=\"lazy\" src=\"https:\/\/my.compclassnotes.com\/canonical\/PHYS110\/PHYS110_book_ch9_4_EXMPL\" width=\"100%\" height=\"1100\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"yes\" class=\"iframe-class\" frameborder=\"0\"><\/iframe>\n\n\n\n\n<h4 class=\"wp-block-heading\">Example<\/h4>\n\n\n\n<!-- iframe plugin v.6.0 wordpress.org\/plugins\/iframe\/ -->\n<iframe loading=\"lazy\" src=\"https:\/\/my.compclassnotes.com\/canonical\/PHYS110\/PHYS110_book_ch9_5_EXMPL_v2\" width=\"100%\" height=\"1200\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"yes\" class=\"iframe-class\" frameborder=\"0\"><\/iframe>\n\n\n\n\n<h4 class=\"wp-block-heading\">Example<\/h4>\n\n\n\n<!-- iframe plugin v.6.0 wordpress.org\/plugins\/iframe\/ -->\n<iframe loading=\"lazy\" src=\"https:\/\/my.compclassnotes.com\/canonical\/PHYS110\/PHYS110_book_ch9_6_EXMPL_v2\" width=\"100%\" height=\"1300\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"yes\" class=\"iframe-class\" frameborder=\"0\"><\/iframe>\n\n\n\n\n<h4 class=\"wp-block-heading\">example<\/h4>\n\n\n\n<!-- iframe plugin v.6.0 wordpress.org\/plugins\/iframe\/ -->\n<iframe loading=\"lazy\" src=\"https:\/\/my.compclassnotes.com\/canonical\/PHYS110\/PHYS110_book_ch9_6_EXMPL\" width=\"100%\" height=\"1300\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"yes\" class=\"iframe-class\" frameborder=\"0\"><\/iframe>\n\n","protected":false},"excerpt":{"rendered":"<p>9.4: Problem solving steps We\u2019ll follow the same problem-solving steps as with problems dealing with conservation laws, but this time we\u2019ll add an intermediate step between the drawing and the math: Draw a picture. Using your picture, draw a free <span class=\"readmore\"><a href=\"https:\/\/books.compclassnotes.com\/rothphys110-2e\/2020\/04\/08\/sections-9-4-9-5\/\">Continue Reading<\/a><\/span><\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-592","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/books.compclassnotes.com\/rothphys110-2e\/wp-json\/wp\/v2\/posts\/592","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/books.compclassnotes.com\/rothphys110-2e\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/books.compclassnotes.com\/rothphys110-2e\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/books.compclassnotes.com\/rothphys110-2e\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/books.compclassnotes.com\/rothphys110-2e\/wp-json\/wp\/v2\/comments?post=592"}],"version-history":[{"count":8,"href":"https:\/\/books.compclassnotes.com\/rothphys110-2e\/wp-json\/wp\/v2\/posts\/592\/revisions"}],"predecessor-version":[{"id":1220,"href":"https:\/\/books.compclassnotes.com\/rothphys110-2e\/wp-json\/wp\/v2\/posts\/592\/revisions\/1220"}],"wp:attachment":[{"href":"https:\/\/books.compclassnotes.com\/rothphys110-2e\/wp-json\/wp\/v2\/media?parent=592"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/books.compclassnotes.com\/rothphys110-2e\/wp-json\/wp\/v2\/categories?post=592"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/books.compclassnotes.com\/rothphys110-2e\/wp-json\/wp\/v2\/tags?post=592"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}