Final answer:
Points for a traffic ticket depend on state or country laws. In the scenario given, skid mark length along with the coefficient of friction could be used to estimate the vehicle's speed and potentially contest a speeding ticket in court.
Step-by-step explanation:
The number of points placed on your driving record for a traffic ticket can vary depending on the specific laws of the state or country where the violation occurred. Generally, traffic offenses are assigned points, and the accumulation of a certain number of points can lead to consequences such as license suspension. To determine whether you should fight a speeding ticket in court, you would need to consider if there is evidence to suggest that you were not in fact speeding or there were extenuating circumstances.
In the scenario where a policeman issues you a ticket based on skid marks and the assumed speed, you may argue in court that the skid mark length alone is not conclusive evidence of speeding. Using the coefficient of friction and the length of the skid marks, an expert can potentially reconstruct the event to estimate the speed of the vehicle at the time of braking. If this reconstructed speed is below or at the speed limit, you could have grounds to contest the ticket.