Re: [ST] Wrap-up of Roethlis-what-his-name?

["Sprint ST" <sprint_st@xxxxxxxxxxx>]

Matt,
I've seen some strange twists and explanations of physics on this site and
it looks like we're going into another case of strange science. In every
science book I had, granted many moon ago, mass times velocity was momentum
not inertia but then again that's splitting hairs because they are almost
identical.  But the real point is that the cop didn't have an inertia meter
in his back pocket and in this case the unknown is velocity and mass can be
estimated but you compute momentum from the variable you are trying to
obtain, you don't measure it.  Maybe you are thinking of KE which is half
the mass times the velocity squared.  The deformation of the car and bike
might provide enough info to estimate the KE.  BUT, all of this is
speculative because most Pittsburgh cops can't count their fingers and toes
without a calculator.  I would bet there was no evidence to prove how fast
anyone was going and no witness said he was flying, so 35mph is good enough
for government work.  Besides what real purpose would it serve to say he was
going 36 or even 40?
Rod


-----Original Message-----
From: st-bounces@xxxxxxxxxxxxxxxxxxxx
[mailto:st-bounces@xxxxxxxxxxxxxxxxxxxx] On Behalf Of Matt Knowles
Sent: Monday, June 19, 2006 4:40 PM
To: ST@xxxxxxxxxxxxxx
Subject: Re: [ST] Wrap-up of Roethlis-what-his-name?


On Jun 19, 2006, at 8:34 AM, Kevin.Dicks@xxxxxxx wrote:

> " Roethlisberger was traveling 35 mph in a posted 35 mph zone, said
> officer Dan Connolly."
>
> Really...
>
> And how exactly do they know that then - seems awfully convenient.

There are several ways that they could have calculated his speed. 
Granted probably not to within 1mph but certainly to within whether or 
not his speed was a contributing factor to the accident.

Mass x Velocity = Inertia

Matt Knowles
Aesthetic Design & Photography - www.aestheticdesign.com - (707) 
786-4643

_______________________________________________
Triumph Sprint ST/RS mailing list
Send list posts to ST@xxxxxxxxxxxxxx
Change your list options at www.Triumphnet.com

-- 
No virus found in this incoming message.
Checked by AVG Free Edition.
Version: 7.1.394 / Virus Database: 268.9.0/368 - Release Date: 6/16/2006
 

-- 
No virus found in this outgoing message.
Checked by AVG Free Edition.
Version: 7.1.394 / Virus Database: 268.9.0/368 - Release Date: 6/16/2006
 
_______________________________________________
Triumph Sprint ST/RS mailing list
Send list posts to ST@xxxxxxxxxxxxxx
Change your list options at www.Triumphnet.com