Answer :
You should keep 0.97 seconds of distance between you and the vehicle ahead.
How to calculate the distance and time taken by a car
The formula for calculating distance is expressed as:
distance = speed * time
Time = Distance/Speed
Given the following parameters
Distance = 50 feet
Speed = 35mph = 51.3ft/s
Time taken = 50/51.3
Time taken = 0.97
Hence you should keep 0.97 seconds of distance between you and the vehicle ahead.
Learn more on distance and speed here: https://brainly.com/question/11495758