The cyclist hits the ground hard. Their bike is mangled. They're groaning, trying to sit up. The car has stopped for a second, then starts pulling away. Two other pedestrians are looking around, confused. Nobody is moving.
Your options
Run to the cyclist and check if they're okay
Get the plate before they drive off. A driver who runs and hits one cyclist will hit the next one too.
You stand there, frozen, watching it all unfold
The Hit and Run
You saw everything. A cyclist is on the ground and the driver isn't stopping. What you do in the next few seconds will change more than you expect.
Qore