The Traffic Accident Reconstruction Origin -ARnews-
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The effort in a conservation of momentum approach is to understand how the two objects shoved on each other to alter the velocity and direction of the other object. Together they act to change the travel speed and direction of the system. We try to quantify that change. In order to do that we must understand what happens while the two objects shove on each other. We want to determine what happens just before they start shoving and just after they separate. Often that initial change just after separation becomes altered by contact points with the roadway, other objects struck, slopes, rotations, stuck tires, etc.
When we isolate the position at rest without plotting the motion from separation, it may turn out that the angles are substantially different than from the original separation angle. This, in turn, can have dramatic effects on the computed speeds.
Ed
Ed Phillips
ephill1@home.com
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