Velocity Reviews > Re: The AWG scam

# Re: The AWG scam

Ferd Berfle
Guest
Posts: n/a

 01-01-2011

"Jane_Galt" <(E-Mail Removed)> wrote in message
news:Xns9E5FB8A7B2260JaneGaltthegulchxyz@216.196.9 7.142...
> "Ferd Berfle" <(E-Mail Removed)> wrote :
>
>
>>>
>>> I drive the interstate most of the time or the city streets... whats a
>>> country road got to do with a nuclear power plant?
>>>

>>
>> Driving on a country road, do you ever consider that there is another
>> car coming at you on the two lane road at 55 mph with only 2 feet clear
>> between you at times?

>
> I knew a woman years ago, whose husband was decapitated by a semi that
> way.
> The driver must have dozed off a little.
>
>
> People dont realize about vector speeds, which we covered in trig.
>
> If 2 vehicles are approaching each other at 55 MPH each, the impact speed
> is
> 110 MPH.
>

No. The kinetic energy is determined by the velocity squared.

Ferd Berfle
Guest
Posts: n/a

 01-02-2011

"Jane_Galt" <(E-Mail Removed)> wrote in message
news:Xns9E608C63AA358JaneGaltthegulchxyz@216.196.9 7.142...
> "Ferd Berfle" <(E-Mail Removed)> wrote :
>
>>
>> "Jane_Galt" <(E-Mail Removed)> wrote in message
>> news:Xns9E5FB8A7B2260JaneGaltthegulchxyz@216.196.9 7.142...
>>> "Ferd Berfle" <(E-Mail Removed)> wrote :
>>>
>>>
>>>>>
>>>>> I drive the interstate most of the time or the city streets... whats a
>>>>> country road got to do with a nuclear power plant?
>>>>>
>>>>
>>>> Driving on a country road, do you ever consider that there is another
>>>> car coming at you on the two lane road at 55 mph with only 2 feet clear
>>>> between you at times?
>>>
>>> I knew a woman years ago, whose husband was decapitated by a semi that
>>> way.
>>> The driver must have dozed off a little.
>>>
>>>
>>> People dont realize about vector speeds, which we covered in trig.
>>>
>>> If 2 vehicles are approaching each other at 55 MPH each, the impact
>>> speed
>>> is
>>> 110 MPH.

>
>> No. The kinetic energy is determined by the velocity squared.

>
> What's that got to do with what I said?
>

With equal mass the impact speed is still 55. Same effect on each as if it
hit a fixed object.

FromTheRafters
Guest
Posts: n/a

 01-02-2011
Ferd Berfle wrote:
> "Jane_Galt"<(E-Mail Removed)> wrote in message
> news:Xns9E608C63AA358JaneGaltthegulchxyz@216.196.9 7.142...
>> "Ferd Berfle"<(E-Mail Removed)> wrote :
>>
>>>
>>> "Jane_Galt"<(E-Mail Removed)> wrote in message
>>> news:Xns9E5FB8A7B2260JaneGaltthegulchxyz@216.196.9 7.142...
>>>> "Ferd Berfle"<(E-Mail Removed)> wrote :
>>>>
>>>>
>>>>>>
>>>>>> I drive the interstate most of the time or the city streets... whats a
>>>>>> country road got to do with a nuclear power plant?
>>>>>>
>>>>>
>>>>> Driving on a country road, do you ever consider that there is another
>>>>> car coming at you on the two lane road at 55 mph with only 2 feet clear
>>>>> between you at times?
>>>>
>>>> I knew a woman years ago, whose husband was decapitated by a semi that
>>>> way.
>>>> The driver must have dozed off a little.
>>>>
>>>>
>>>> People dont realize about vector speeds, which we covered in trig.
>>>>
>>>> If 2 vehicles are approaching each other at 55 MPH each, the impact
>>>> speed
>>>> is
>>>> 110 MPH.

>>
>>> No. The kinetic energy is determined by the velocity squared.

>>
>> What's that got to do with what I said?
>>

> With equal mass the impact speed is still 55. Same effect on each as if it
> hit a fixed object.
>

The energy is additive with two 55 MPH vehicles, the relative speed is
110 - as if one were traveling 110 MPH and hit that wall - otherwise, if
one were less mass, you wouldn't be able to explain how the smaller
reversed its direction of travel after impacting with the more massive one.

Ferd Berfle
Guest
Posts: n/a

 01-03-2011

"FromTheRafters" <(E-Mail Removed)> wrote in message
news:ifqvj8\$5mg\$(E-Mail Removed)-september.org...
> Ferd Berfle wrote:
>> "Jane_Galt"<(E-Mail Removed)> wrote in message
>> news:Xns9E608C63AA358JaneGaltthegulchxyz@216.196.9 7.142...
>>> "Ferd Berfle"<(E-Mail Removed)> wrote :
>>>
>>>>
>>>> "Jane_Galt"<(E-Mail Removed)> wrote in message
>>>> news:Xns9E5FB8A7B2260JaneGaltthegulchxyz@216.196.9 7.142...
>>>>> "Ferd Berfle"<(E-Mail Removed)> wrote :
>>>>>
>>>>>
>>>>>>>
>>>>>>> I drive the interstate most of the time or the city streets... whats
>>>>>>> a
>>>>>>> country road got to do with a nuclear power plant?
>>>>>>>
>>>>>>
>>>>>> Driving on a country road, do you ever consider that there is another
>>>>>> car coming at you on the two lane road at 55 mph with only 2 feet
>>>>>> clear
>>>>>> between you at times?
>>>>>
>>>>> I knew a woman years ago, whose husband was decapitated by a semi that
>>>>> way.
>>>>> The driver must have dozed off a little.
>>>>>
>>>>>
>>>>> People dont realize about vector speeds, which we covered in trig.
>>>>>
>>>>> If 2 vehicles are approaching each other at 55 MPH each, the impact
>>>>> speed
>>>>> is
>>>>> 110 MPH.
>>>
>>>> No. The kinetic energy is determined by the velocity squared.
>>>
>>> What's that got to do with what I said?
>>>

>> With equal mass the impact speed is still 55. Same effect on each as if
>> it
>> hit a fixed object.
>>

> The energy is additive with two 55 MPH vehicles, the relative speed is
> 110 - as if one were traveling 110 MPH and hit that wall - otherwise, if
> one were less mass, you wouldn't be able to explain how the smaller
> reversed its direction of travel after impacting with the more massive
> one.
>

"With equal mass the impact speed is still 55. Same effect on each as if it
hit a fixed object."

Of course a lesser mass object would reverse upon impact. With speed and
mass equal the head on collision gives the same result to each one identical
to it's singular impact with a fixed object but not the same as a single
unit traveling twice the velocity.

Two V does not equal V squared.

FromTheRafters
Guest
Posts: n/a

 01-03-2011
Ferd Berfle wrote:
> "FromTheRafters"<(E-Mail Removed)> wrote in message
> news:ifqvj8\$5mg\$(E-Mail Removed)-september.org...
>> Ferd Berfle wrote:
>>> "Jane_Galt"<(E-Mail Removed)> wrote in message
>>> news:Xns9E608C63AA358JaneGaltthegulchxyz@216.196.9 7.142...
>>>> "Ferd Berfle"<(E-Mail Removed)> wrote :
>>>>
>>>>>
>>>>> "Jane_Galt"<(E-Mail Removed)> wrote in message
>>>>> news:Xns9E5FB8A7B2260JaneGaltthegulchxyz@216.196.9 7.142...
>>>>>> "Ferd Berfle"<(E-Mail Removed)> wrote :
>>>>>>
>>>>>>
>>>>>>>>
>>>>>>>> I drive the interstate most of the time or the city streets... whats
>>>>>>>> a
>>>>>>>> country road got to do with a nuclear power plant?
>>>>>>>>
>>>>>>>
>>>>>>> Driving on a country road, do you ever consider that there is another
>>>>>>> car coming at you on the two lane road at 55 mph with only 2 feet
>>>>>>> clear
>>>>>>> between you at times?
>>>>>>
>>>>>> I knew a woman years ago, whose husband was decapitated by a semi that
>>>>>> way.
>>>>>> The driver must have dozed off a little.
>>>>>>
>>>>>>
>>>>>> People dont realize about vector speeds, which we covered in trig.
>>>>>>
>>>>>> If 2 vehicles are approaching each other at 55 MPH each, the impact
>>>>>> speed
>>>>>> is
>>>>>> 110 MPH.
>>>>
>>>>> No. The kinetic energy is determined by the velocity squared.
>>>>
>>>> What's that got to do with what I said?
>>>>
>>> With equal mass the impact speed is still 55. Same effect on each as if
>>> it
>>> hit a fixed object.
>>>

>> The energy is additive with two 55 MPH vehicles, the relative speed is
>> 110 - as if one were traveling 110 MPH and hit that wall - otherwise, if
>> one were less mass, you wouldn't be able to explain how the smaller
>> reversed its direction of travel after impacting with the more massive
>> one.
>>

> "With equal mass the impact speed is still 55. Same effect on each as if it
> hit a fixed object."
>
> Of course a lesser mass object would reverse upon impact. With speed and
> mass equal the head on collision gives the same result to each one identical
> to it's singular impact with a fixed object but not the same as a single
> unit traveling twice the velocity.
>
> Two V does not equal V squared.
>

I see what you are saying now, *each* vehicle can be viewed as hitting a
brick wall at 55 mph, and you're not considering *both* vehicles (where
you would have to add them). Sure, one vehicle at 110 is not the same
energy as two vehicles at 55 because it is not additive in this case but
a square.

So, as I said, the energy is additive when the relative speed is 110,
but I was wrong to state that a single vehicle at 110 into a brick wall
was equivalent.

I was confused into thinking that you were saying that one into a brick
wall at 55 was the same energy as two at 55 head on, else I wouldn't
have even joined in.

FromTheRafters
Guest
Posts: n/a

 01-04-2011
~BD~ wrote:
> FromTheRafters wrote:
>
>> I was confused into thinking that you were saying that one into a brick
>> wall at 55 was the same energy as two at 55 head on, else I wouldn't
>> have even joined in.

>
> I've discussed this with my son. It's not a simple answer, but IMO FTR
> is slightly *more* correct than Ferd!

No, Ferd is correct. a projectile hitting an immovable object releases
the same amount of energy as a projectile hitting another projectile of
equal mass and velocity head-on. The total release of energy in the
entire event is doubled because each becomes each other's immovable
object, but for each one, it is the same as before.

I was confused that Ferd appeared to be ignoring the mass and velocity
of the *other* projectile and saying it wasn't additive in the entire
event - I now see that he was only trying to point out that energy
increases non-linearly with speed but can be additive as (mass/velocity)
+ (mass/velocity) = total event energy.

Ferd Berfle
Guest
Posts: n/a

 01-04-2011

"FromTheRafters" <(E-Mail Removed)> wrote in message
news:ifu44k\$u3e\$(E-Mail Removed)-september.org...
> ~BD~ wrote:
>> FromTheRafters wrote:
>>
>>> I was confused into thinking that you were saying that one into a brick
>>> wall at 55 was the same energy as two at 55 head on, else I wouldn't
>>> have even joined in.

>>
>> I've discussed this with my son. It's not a simple answer, but IMO FTR
>> is slightly *more* correct than Ferd!

>
> No, Ferd is correct. a projectile hitting an immovable object releases the
> same amount of energy as a projectile hitting another projectile of equal
> mass and velocity head-on. The total release of energy in the entire event
> is doubled because each becomes each other's immovable object, but for
> each one, it is the same as before.
>
> I was confused that Ferd appeared to be ignoring the mass and velocity of
> the *other* projectile and saying it wasn't additive in the entire event -
> I now see that he was only trying to point out that energy increases
> non-linearly with speed but can be additive as (mass/velocity) +
> (mass/velocity) = total event energy.

Sorry for any confusion. I was addressing the person in the single vehicle.

Isn't it interesting to see people worry about the risk of some catastrophic
event but routinely drive on two lane roads seemingly oblivious to the
narrow separation between the opposing traffic?