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	<title>TheBestSpinner Review &#124; Article Rewrite Tool &#124; How To Rewrite Articles Fast &#187; images</title>
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		<title>Why and HOW does spin affect the normal and tangential velocities of a ping pong ball after bounce?</title>
		<link>http://www.thebestspinnerreviews.com/article-spinner-q-as/why-and-how-does-spin-affect-the-normal-and-tangential-velocities-of-a-ping-pong-ball-after-bounce/</link>
		<comments>http://www.thebestspinnerreviews.com/article-spinner-q-as/why-and-how-does-spin-affect-the-normal-and-tangential-velocities-of-a-ping-pong-ball-after-bounce/#comments</comments>
		<pubDate>Thu, 11 Mar 2010 08:15:20 +0000</pubDate>
		<dc:creator>Admin</dc:creator>
				<category><![CDATA[Article Spinner Q & A's]]></category>
		<category><![CDATA[angular velocity]]></category>
		<category><![CDATA[ball game]]></category>
		<category><![CDATA[bat and ball]]></category>
		<category><![CDATA[bounce]]></category>
		<category><![CDATA[c2]]></category>
		<category><![CDATA[constants]]></category>
		<category><![CDATA[critical component]]></category>
		<category><![CDATA[exact question]]></category>
		<category><![CDATA[gameplay]]></category>
		<category><![CDATA[guess]]></category>
		<category><![CDATA[images]]></category>
		<category><![CDATA[phrase]]></category>
		<category><![CDATA[physics]]></category>
		<category><![CDATA[ping pong ball]]></category>
		<category><![CDATA[ra]]></category>
		<category><![CDATA[table tennis ball]]></category>
		<category><![CDATA[tangential velocity]]></category>
		<category><![CDATA[tt]]></category>
		<category><![CDATA[variables]]></category>
		<category><![CDATA[velocity change]]></category>

		<guid isPermaLink="false">http://www.thebestspinnerreviews.com/article-spinner-q-as/why-and-how-does-spin-affect-the-normal-and-tangential-velocities-of-a-ping-pong-ball-after-bounce/</guid>
		<description><![CDATA[I was looking at the following webpage: http://www.gregsttpages.com/articles/tt_physics_maths.html About a third of the way down there are two images that show how the bounce of a ping pong ball is affected based on spin. To find them, you can Ctrl+F the phrase &#8216;heavily stylised&#8217;. Unfortunately, on this webpage it doesn&#8217;t mention any formulas for the [...]]]></description>
			<content:encoded><![CDATA[<p>I was looking at the following webpage:</p>
<p>http://www.gregsttpages.com/articles/tt_physics_maths.html</p>
<p>About a third of the way down there are two images that show how the bounce of a ping pong ball is affected based on spin.  To find them, you can Ctrl+F the phrase &#8216;heavily stylised&#8217;.  Unfortunately, on this webpage it doesn&#8217;t mention any formulas for the ball&#8217;s velocity change.  I&#8217;d like to know the physics behind this bounce because I&#8217;m currently developing a 2D bat-and-ball game in which spin is a critical component of gameplay.  Here is my exact question:</p>
<p>Assuming 2 dimensions only:  If a table tennis ball has an angular velocity A, tangential velocity T, and normal velocity N at the instant of impact with the table, what will be the values of each after bounce?</p>
<p>A = ?; T = ?; N = ?;</p>
<p>My guess was that only the tangential velocity would be affected by angular velocity, but according to the website I linked to, the normal velocity is affected as well!  HOW?</p>
<p>Thanks,<br />
Ra<br />
And when trying to explain the concepts to me, would it be possible for you to explain the terminology and symbols used?  Only because I just rock at physics.</p>
<p>Thanks a lot people!!  Appreciate it!<br />
I can guess a lot of what is going on, but can anyone give me the simplest formula I can use to calculate the values of each variable after bounce.  By simple I mean, leave out any variables that would cause negligible change.</p>
<p>A = Angular Velocity<br />
T = Tangential Velocity<br />
N = Normal Velocity<br />
C1 = Constant 1<br />
C2 = Constant 2<br />
CX = Constant X</p>
<p>Where the constants are anything from coefficient of restitutions to whatever&#8230; thanks!</p>
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