Well,it realy depends on your tires,brakes,and how heavy your car is.
normal cars are around 3-4 seconds.
supercars can 2sec or below, carbon brake z06 is in the 1.7sec. zone.
A average freight train going 50 mph (80 km/h) will take up to 1.5 miles. That is how long a freight train takes to stop if it collides with a car.
It depends on the condition of the brakes and the road.
That's going to depend heavily on the weight of the cargo in each car.
25mph.
62 feet
Depends on what you're trying to stop with
Depends on the size of the vehicle and the road conditions plus reaction time of the driver. On average it would take a total of 43 feet in a car and 52 feet in a truck going 20 mph.
228 feet
30 feet
Stopping Distance = about 206.25 feet at 55 mph
about 120 ft
228 ft