Too many variables to answer correctly without more info. Even if traveling on the same route, are they going the same direction or opposite????
40mph is about 64.3km/h
40mph = 64.3738kmph
It will go 40mph if it's not broken 40mph is you answer by this cocky person who wrote this
how long will it take me to drive 30 miles going 40mph
40mph.
40mph
40mph
40mph
Infinite
It should take you a little over 3 minutes if you travel at 40mph constantly
34.75 knots
40mph