Two blocks
yes they can. They have special devices that can track.
A good rule of thumb for determining following distance while driving is to maintain a distance of at least three seconds between your vehicle and the vehicle in front of you. This allows for enough time to react in case of sudden stops or emergencies.
the distance/time in which you should be following at behind a vehicle
The driving distance is about 1,135 miles.
As a vehicle's speed increases, the stopping distance also increases. This is because the vehicle will continue to travel a greater distance before coming to a complete stop once the brakes are applied. It is important to consider this increase in stopping distance when driving at higher speeds to ensure safety on the road.
Following distance is the space between your vehicle and the vehicle in front of you while driving. Maintaining a safe following distance allows you more time to react to sudden stops or changes in traffic situations, helping to prevent rear-end collisions. The general rule is to keep at least a 3-second distance in good weather conditions, and more in adverse conditions.
one half....A+
4
That depends on 4 factors - size of vehicle you're driving, what you're towing/hauling, the road conditions, and if the vehicle is equipped with ABS or not.
one half....A+
one half
one half....A+