{"id":6997,"date":"2014-12-11T20:21:12","date_gmt":"2014-12-11T20:21:12","guid":{"rendered":"http:\/\/www.oracletutoring.ca\/blog\/?p=6997"},"modified":"2018-01-27T22:46:06","modified_gmt":"2018-01-27T22:46:06","slug":"physics-dilution-of-gravity","status":"publish","type":"post","link":"https:\/\/www.oracletutoring.ca\/blog\/physics-dilution-of-gravity\/","title":{"rendered":"Physics: dilution of gravity"},"content":{"rendered":"

Tutoring physics, gravity is perennial.\u00a0The tutor explains the dilution of gravity that occurs on a slope.<\/h1>\n

Everyone knows that a ball rolls more slowly down a slope than if it falls straight down. The gentler the slope, the more slowly the ball rolls.<\/p>\n

Yet, a physicist would never be comfortable with just that knowledge. “How<\/em> fast does it accelerate at a given steepness?” the physicist would ask. They always need a number.<\/p>\n

Well, in this case, coming up with the number is relatively easy. First of all, we need to agree that the straight-down acceleration due to gravity on Earth, called g, has the following value:<\/p>\n

g=-9.8m\/s2<\/sup><\/p>\n

where the negative sign just means “down” (positive means up).<\/p>\n

Now, let’s examine this slope:<\/p>\n

<\/p>\n

The acceleration due to gravity, down this slope, will be<\/p>\n

a=g(h\/L) = -9.8*(h\/L)m\/s2<\/sup><\/p>\n

Example 1<\/strong>: Imagine a slope 7m long that rises 3m. What is the acceleration due to gravity down this slope?<\/p>\n

Solution<\/strong>: First, we draw a diagram, as below:<\/p>\n

<\/p>\n

Now we invoke the dilution formula:<\/p>\n

a=g(h\/L)=-9.8*3\/7=-4.2m\/s2<\/sup><\/p>\n

Of course, the dilution formula doesn’t consider friction; the actual acceleration will be slower with the effect of friction.<\/p>\n

Hope this helps:)<\/p>\n

Jack of Oracle Tutoring by Jack and Diane,<\/a> Campbell River, BC.<\/p>\n","protected":false},"excerpt":{"rendered":"

Tutoring physics, gravity is perennial.\u00a0The tutor explains the dilution of gravity that occurs on a slope. Everyone knows that a ball rolls more slowly down a slope than if it falls straight down. The gentler the slope, the more slowly …<\/p>\n

Physics: dilution of gravity<\/span> Read More »<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[346,344,345],"class_list":["post-6997","post","type-post","status-publish","format-standard","hentry","category-physics","tag-acceleration-due-to-gravity-down-a-slope","tag-dilution-of-gravity","tag-gravity-on-a-slope"],"_links":{"self":[{"href":"https:\/\/www.oracletutoring.ca\/blog\/wp-json\/wp\/v2\/posts\/6997","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.oracletutoring.ca\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.oracletutoring.ca\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.oracletutoring.ca\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.oracletutoring.ca\/blog\/wp-json\/wp\/v2\/comments?post=6997"}],"version-history":[{"count":14,"href":"https:\/\/www.oracletutoring.ca\/blog\/wp-json\/wp\/v2\/posts\/6997\/revisions"}],"predecessor-version":[{"id":28845,"href":"https:\/\/www.oracletutoring.ca\/blog\/wp-json\/wp\/v2\/posts\/6997\/revisions\/28845"}],"wp:attachment":[{"href":"https:\/\/www.oracletutoring.ca\/blog\/wp-json\/wp\/v2\/media?parent=6997"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.oracletutoring.ca\/blog\/wp-json\/wp\/v2\/categories?post=6997"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.oracletutoring.ca\/blog\/wp-json\/wp\/v2\/tags?post=6997"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}