What are the three factors that affect the force of impact?

• A. The weight of the car, the speed of the car, and what you hit
• B. The color of the car, the weather, the time of day
• C. The driver's mood, the car age, road grade
• D. The type of music in the car, the tire tread depth, the seat fabric

Answer: (A)

The force of impact is driven by momentum and how energy is absorbed during a crash. Momentum depends on how heavy the car is (mass) and how fast it’s going (velocity). A heavier car or higher speed means more momentum, which leads to a stronger impact force. The object you collide with also matters because its ability to absorb energy and how it resists deformation affects how quickly the car decelerates. A solid, unyielding object tends to cause a larger, sharper force than something that can absorb energy.

So the factors that directly influence the peak impact force are the car’s weight, the car’s speed, and what you hit. Other factors like color, mood, weather, or tire tread don’t determine the force of impact itself, though they can influence control and stopping distance, which can change the actual outcome.