How does inertia affect turning and braking in a car?
Quick Answer
Inertia makes a car resist changes in speed or direction. That is why braking takes distance and turning at high speed can be dangerous.
The Full Story
A moving car has momentum, so it tends to keep moving in the same direction until a force changes that motion. Brakes create friction to reduce speed, and tires provide the sideways force needed to turn. At higher speeds, the same braking force takes longer to stop the car because there is more kinetic energy to remove. In sharp turns, inertia pushes passengers outward relative to the vehicle, which is why seat belts and airbags are important. This everyday experience is a direct result of Newton’s laws of motion.
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