How much longer does it take a car to stop on ice?

On ice, a car's stopping distance can be up to 10 times longer than on dry pavement. This is because ice has less friction than asphalt or concrete, which means that the car's tires have less grip and are more likely to slide. In addition, ice can be very slippery, which makes it difficult for drivers to control their cars.

According to the National Highway Traffic Safety Administration (NHTSA), the average stopping distance for a car traveling at 20 mph on dry pavement is 20 feet. On ice, the average stopping distance for the same car is 200 feet. This means that it takes a car 10 times longer to stop on ice than on dry pavement.

The NHTSA also found that the average stopping distance for a car traveling at 30 mph on dry pavement is 30 feet. On ice, the average stopping distance for the same car is 300 feet. This means that it takes a car 10 times longer to stop on ice than on dry pavement.