An SUV and a full size car collide head on. Both of the drivers had gotten distracted and drifted into the midline of the road. While both drivers made mistakes, the one that was speeding will ultimately be held liable. If they both were, or neither were, then the fault is equally split and neither is responsible for the damages to the other. The driver of the SUV is unconscious and being transported to the hospital. The driver of the full size car is coherent, and adamant he was not speeding. Your job is to reconstruct the scene and determine their speed at impact and their speed prior to the collision.

The length of skid marks from a person slamming on the brakes can be used to solve for how fast the car was going before it stopped. Using friction, kinematics, energy, and momentum calculations, eyewitness accounts are no longer needed.

When these two vehicles hit each other, how fast were they going?

The weight of the suv is 2900kg and the weight of the car is 2000kg