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Author Topic: Ball Roll  (Read 1717 times)

thewhiz

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Ball Roll
« on: January 25, 2017, 09:40:18 PM »
I throw a eternal cell and a storm byte.  Why do those two balls roll and rev up so well?  Is it a core cover combo or cause they are assym. Balls?  What other balls in the storm roto grip lineup would roll that well?
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tgknukem

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Re: Ball Roll
« Reply #1 on: January 26, 2017, 02:49:17 PM »
They 'rev up' due to their fairly low Radius of Gyration (2.52 for both).  You actually release them with a higher RPM than a ball with a higher RG rating.  If your average RPM's are about 300, you would release it with about 10 more RPM's than a ball with a 2.62 RG rating.  I nerdily stumbled upon an equation on the internet that I used to compute this.
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thewhiz

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Re: Ball Roll
« Reply #2 on: January 26, 2017, 03:12:01 PM »
so your saying something like a daredevil with a 2.r8 rg will rev up also even though it's symmetrical?
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tgknukem

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Re: Ball Roll
« Reply #3 on: January 26, 2017, 03:42:09 PM »
The symmetry of a balls core has no effect on it's rate of revolution.
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