23 meters on a dry pavement.
Most cars can stop from 60 mph in about 100 feet or so. If the relationship is linear then a car should stop from 30 mph in about 50 feet.
135/170
The stopping distance, after decelerating from 60 mph to 0 mph, will depend on the efficiency of the brakes, the friction between the tyres and the road surface and the mass of the vehicle.The initial speed alone cannot give you an answer.
Depends what car it is.
40 mph = 40 miles in 60 minutes = 20 miles in 30 minutes.
Stopping distance at 30mph = 23m
Stopping Distance = about 75 feet.
When traveling 30-mph, the braking distance is 45-feet, and the total stopping distance is 75-feet. This is the length of a semi-truck and trailer.
Stopping Distance = about 315 feet at 70 mph
23 meters in normal conditions
Stopping Distance = 15 feet
The total stopping distance for a car travelling at 30 mph on a dry surface is about 75 feet. However, you may wish to note that in most countries, driving a car on the pavement is illegal.
Stopping Distance = about 146.25 feet.
Stopping distance at 40mph = 36m
1/2
1/2 mile
Most cars can stop from 60 mph in about 100 feet or so. If the relationship is linear then a car should stop from 30 mph in about 50 feet.