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Not sure what veihcle is. The distance between two vehicles depends on their speeds, the conditions of the vehicles, the road, the drivers' alertness and many other factors.
It is generally recommended to measure the distance in seconds rather than feet or car length when following another vehicle. This is because measuring in seconds provides a more accurate representation of the time it takes to react and stop in case of sudden braking. It also allows for a consistent measurement regardless of the speed of the vehicles involved.
Speed is measured by distance and time, yes. Velocity takes in direction.
The answer depends on what you are trying to measure: the amount of time it takes to overtake or the distance that you will cover when overtaking or some other aspect of the process.
You might be in good condition but what about the road condition (wet, icy), the state of you tyres (good tread or worn), the state of your brakes?
Maintain a safe distance between vehicles. Never tailgate.
use more following distance
true
Not sure what veihcle is. The distance between two vehicles depends on their speeds, the conditions of the vehicles, the road, the drivers' alertness and many other factors.
According to the California Department of Motor Vehicles, the minimum following distance on highways is three car lengths. Anything closer is considered tailgatinging and is both unsafe and against the law. This distance is independent of time of day.
Time, distance
At least 2 seconds of travel time between vehicles.
Follow-me vehicles.
2 average car lengths in the standard. The more the merrier. 1 second for every 10 mph. in bad weather 2 seconds
vehicles without an integral braking system
In California, it's a "three second cushion" of space when following other vehicles. http://www.dmv.ca.gov/pubs/dl603/teen_htm/drivingskills.htm
NO !