That depends on what vehicle you are stopping from 55 mph. the laws of physics come into play. The heavier the vehicle the longer the stopping distance. So I cannot give an accurate answer except to say that from 60 mph the average for a mid-sized car is around 135 feet.
275 feet
Think of the word DISTance and you have the formula D Is S times T Distance equals Speed x Time from which you can infer that Speed equals Distance divided by Time and Time equals Distance divide by Speed So in this example How long? means find the Time, and Time = Distance/Speed which equals 960miles divided by 55mph = 17hours 27minutes 16.36363636.....seconds What about stopping for coffee or a rest?
Yes, friction affects stopping distance. The greater the friction the lower the stopping distance; the lower the friction the greater the stopping distance.
Stopping distance at 30mph = 23m
Stopping Distance = 15 feet
Stopping Sight Distance
Stopping Distance = about 146.25 feet.
The steeper the slope, the longer the stopping distance is.
The stopping distance of a car increases.
Trains require a long stopping distance.
Stopping distance also increases.
Stopping distance at 40mph = 36m