39 minutes 26 seconds.
If you could drive non-stop at a constant speed of 70 mph, it would take 1 hour and 25 minutes.
Time = Distance/Speed = 353/70 = 5.043 hours = 5 hours 2.6 minutes
How many hours a day do you want to drive? 8? 24? Choose the number of hours, then multiply that by the speed.
70m/40mph = 1+3/4 hours total if speed is a constant 40mph (70m-30m)/40mph = 1 hour remaining with above conditions met
If you are at a constant speed of 60mph the whole time it will take you approximately four hours & forty-four minutes.
2 hours 40 minutes. This is the total driving time at that speed and excludes stops or delays.
The average speed of the Caltrain is fifty-five miles per hour, but it has a top speed of seventy-nine miles per hour.
Dividing distance travelled by speed gives 60/40 = 1.5 hours or 1 hour 30 minutes.
Dividing distance travelled by speed gives 70/60 = 1.16 recurring (that is, 1.16666...) hours or 1 hour 10 minutes.
time = distance ÷ speed = 40 miles ÷ 65 miles per hour = 8/13 hours ~= 0.615 hours ~= 37 mins
40 miles is a distance, not a speed, therefore, it can't be measured in terms of velocity.
Time = Distance/Speed = 171/70 = 2.443 hours (approx)