Final answer:
The majority of electric current and associated hazards in vehicle collisions can be eliminated most easily and quickly by utilizing systems and devices that prevent electrical hazards.
Step-by-step explanation:
When it comes to reducing electric current and associated hazards in vehicle collisions, one of the most effective methods is to utilize systems and devices that prevent electrical hazards. These safety measures can include circuit breakers, fuses, and grounding techniques. For example, circuit breakers and fuses can interrupt larger currents that may lead to shock hazards. By quickly cutting off the flow of electricity, they help to prevent injuries and damages. Additionally, grounding techniques can eliminate electric currents by providing a safe path for electricity to flow into the earth, reducing the risk of shock.