Not including thinking and reaction distance, at 20 miles per hour, lawful brakes must stop a car within

Question

Question: Not including thinking and reaction distance, at 20 miles per hour, lawful brakes must stop a car within

Options:

1.  10 feet
2.  19 feet
3.  30 feet
4.  40 feet

Answer 1

2.)  19 feet

Not including thinking and reaction distance, at 20 miles per hour, lawful brakes must stop a car within 19 feet.