[Default] On Thu, 13 Nov 2008 07:56:49 -0800, "William "Chops"
Westfield" wrote:

>> Oh gimme a break.  The formula is so simple it's not laziness but  
>> that you forgot to pay attention in high school physics.
>>
>> And by the way, 1000 RPM at 1 foot is 3343g (this took all of 10  
>> seconds to do on my trusty HP 11C calculator).

>Ac = w^2r   [m/s^2 = (rad/s)^2 * m]
>    = ((1000/60)*2*pi)^2 * .3
>    = 3289.86 m/s^2
>To convert from m/s^2, divide by 9.8m/s^2, giving 335.7g
>That's still higher than I expected, but I guess it must be possible.
>
>How'd you manage to be off by "approximately" a factor of 10?

It seems Olin may have paid attention in high school physics, but he
didn't pay attention enough to the friendly advice here at the piclist
to execute such calculations with the units... :)

The HP 11C may be trusty, but something else seems to get rusty... :)

Gerhard 

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