Low Velocity Injuries
truk
 
The term "Low Velocity" collisions refers to the relative speeds most often seen in motor vehicle accidents (MVA) and falling accidents.


There are three collisions that occur during a single MVA. All of them are due to Newton's first law of motion and conservation of energy and momentum.
First there is the collision between the moving
vehicle and something that is not


oops
face
Then  there is the collision of the passenger with
the inside of the vehicle
Finally there's the collision between a persons
innards with their rigid body

When the head is hit and the brain rocks
back and fourth it is called
coup counter-coup
brainz

There are many similarities between falling injuries
and MVA injuries. In both cases energy is being
transferred from one body to another, but in the case
of someone falling their potential energy is being
turned into kinetic energy.
PE=mgH
KE=1/2mv^2

Since energy is always conserved we can say that
all of a persons potential energy is transferred into
kinetic energy upon impact.
PEi+KEi=PEf+KEf
Conservation of energy in a low velocity collision
against something that is not sharp causes blunt
farce trauma.
Abrasions are a sign of blunt force trauma that has had a long contact time.
foot
smith
When there is a lot of energy transferred there is potential for very serious injuries. These injuries can very often be permanent brain injury.


bACk   hOMe   NeXt