99% of the time, the striking vehicle is charged with the collision. You were either following too close - failed to give full attention to your driving - or failed to have your vehicle under control.
nothing unless the hit break while the car is moving
First, you shouldn't be cutting people off. Whom ever hit the other car from behind would be at fault.
The car behind you
If YOU are the driver of the vehicle that started the chain collision, and pushed the car you hit into the car in front ot it. - YOU are responsible.
the car that that did the original striking will pay for all damages.
Yes . They are still useful .
When ever a person hits the car in front of them, they are found at fault. If you hit a car in the rear even though it stops short, you are at fault. You will probably get a ticket and your insurance will go up.
Typically that is the way it works, They car behind who hit your car pays for your damages and the car in front that you hit will be covered by your insurance.
Get his registration number. The fact he drives off does nothing to reduce his responsibility.
The driver who hit it.
the car that hit you in the rear is at fault. think about it this way. What did you do wrong if you were stopped
The back, so it does not jerk forward and hit you.