"tadchem" <tadchemNOSPAM@earthlink.net> wrote in message
news:yJ8ab.32947$NM1.3231@newsread2.news.atl.earthlink.net...
"Anthony" <Anthony3@comcast.net> wrote in message
news:hq2cndKp49ctjfSiU-KYgg@comcast.com...
Here's a question for you physics guys...
<snip>
I believe car A's impact would be just momentum (mass times velocity),
if
I'm not mistaken.
You are. Mistaken, that is.
The force F on the vehicle is *irrelevant* to the _momentum_ - m*v
Tony: The (net) force exerted between the car and the wall is - as they say
in Dixie - "directly proportional to the speed" of the car; at the time of
impact. I doubt that acceleration, or deceleration would make very much
difference.
- or to
the _kinetic energy_ - (1/2)*m*v^2 - of the impact.
The kinetic energy would go into scrunching, and smashing the car;
distorting, breaking and or moviing the wall, and be lost to unrecoverable
heating.
Tom Davidson
Richmond, VA
(waiting for Isabel to come - because Godot is already late...)
You're right as the rain that will surely accompany Isabel Anthony(:-)
.
