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		<id>http://wiki.sommarmatte.se/wikis/2009/bridgecoursemechanics/index.php?action=history&amp;feed=atom&amp;title=Solution_3.9b</id>
		<title>Solution 3.9b - Revision history</title>
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		<updated>2026-04-08T03:30:48Z</updated>
		<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>http://wiki.sommarmatte.se/wikis/2009/bridgecoursemechanics/index.php?title=Solution_3.9b&amp;diff=1617&amp;oldid=prev</id>
		<title>Ian at 11:30, 27 March 2011</title>
		<link rel="alternate" type="text/html" href="http://wiki.sommarmatte.se/wikis/2009/bridgecoursemechanics/index.php?title=Solution_3.9b&amp;diff=1617&amp;oldid=prev"/>
				<updated>2011-03-27T11:30:48Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;

			&lt;table style=&quot;background-color: white; color:black;&quot;&gt;
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				&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;←Older revision&lt;/td&gt;
				&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;Revision as of 11:30, 27 March 2011&lt;/td&gt;
			&lt;/tr&gt;
		&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;-&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;[[Image:3.&lt;del style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;9b&lt;/del&gt;.gif]]&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;[[Image:3.&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;9bNew&lt;/ins&gt;.gif]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;Friction will &amp;quot;try&amp;quot; and prevent motion that is achieve equilibrium.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;Friction will &amp;quot;try&amp;quot; and prevent motion that is achieve equilibrium.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Ian</name></author>	</entry>

	<entry>
		<id>http://wiki.sommarmatte.se/wikis/2009/bridgecoursemechanics/index.php?title=Solution_3.9b&amp;diff=1575&amp;oldid=prev</id>
		<title>Ian at 16:30, 3 February 2011</title>
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				<updated>2011-02-03T16:30:44Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;

			&lt;table style=&quot;background-color: white; color:black;&quot;&gt;
			&lt;col class='diff-marker' /&gt;
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			&lt;col class='diff-content' /&gt;
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				&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;←Older revision&lt;/td&gt;
				&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;Revision as of 16:30, 3 February 2011&lt;/td&gt;
			&lt;/tr&gt;
		&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 11:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 11:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;Also the maximum friction possible is &lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;Also the maximum friction possible is &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;-&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&amp;lt;math&amp;gt;\mu R=0.4\times 1960=784\ \text{N}&amp;lt;/math&amp;gt;. &lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&amp;lt;math&amp;gt;\mu R=0&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;\textrm{&lt;/ins&gt;.&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;}&lt;/ins&gt;4\times 1960=784\ \text{N}&amp;lt;/math&amp;gt;. &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&amp;lt;math&amp;gt;F=760\ \text{N}&amp;lt;/math&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&amp;lt;math&amp;gt;F=760\ \text{N}&amp;lt;/math&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;falls inside this maximum value and thus is the value of the friction.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;falls inside this maximum value and thus is the value of the friction.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Ian</name></author>	</entry>

	<entry>
		<id>http://wiki.sommarmatte.se/wikis/2009/bridgecoursemechanics/index.php?title=Solution_3.9b&amp;diff=849&amp;oldid=prev</id>
		<title>Ian: New page: Image:3.9b.gif  Friction will &quot;try&quot; and prevent motion that is achieve equilibrium.   &lt;math&gt;\begin{align} &amp; \text{For}\ \text{equilibrium}\ P-F=0 \\  &amp; \text{that}\ \text{is}\ F=760\ \...</title>
		<link rel="alternate" type="text/html" href="http://wiki.sommarmatte.se/wikis/2009/bridgecoursemechanics/index.php?title=Solution_3.9b&amp;diff=849&amp;oldid=prev"/>
				<updated>2010-03-19T15:57:41Z</updated>
		
		<summary type="html">&lt;p&gt;New page: &lt;a href=&quot;/wikis/2009/bridgecoursemechanics/index.php/Image:3.9b.gif&quot; title=&quot;Image:3.9b.gif&quot;&gt;Image:3.9b.gif&lt;/a&gt;  Friction will &amp;quot;try&amp;quot; and prevent motion that is achieve equilibrium.   &amp;lt;math&amp;gt;\begin{align} &amp;amp; \text{For}\ \text{equilibrium}\ P-F=0 \\  &amp;amp; \text{that}\ \text{is}\ F=760\ \...&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;[[Image:3.9b.gif]]&lt;br /&gt;
&lt;br /&gt;
Friction will &amp;quot;try&amp;quot; and prevent motion that is achieve equilibrium.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;math&amp;gt;\begin{align}&lt;br /&gt;
&amp;amp; \text{For}\ \text{equilibrium}\ P-F=0 \\ &lt;br /&gt;
&amp;amp; \text{that}\ \text{is}\ F=760\ \text{N} \\ &lt;br /&gt;
\end{align}&amp;lt;/math&amp;gt;&lt;br /&gt;
 &lt;br /&gt;
&lt;br /&gt;
Also the maximum friction possible is &lt;br /&gt;
&amp;lt;math&amp;gt;\mu R=0.4\times 1960=784\ \text{N}&amp;lt;/math&amp;gt;. &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;math&amp;gt;F=760\ \text{N}&amp;lt;/math&amp;gt;&lt;br /&gt;
falls inside this maximum value and thus is the value of the friction.&lt;/div&gt;</summary>
		<author><name>Ian</name></author>	</entry>

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