Your family will be on the road for 12 hours and 30minutes, without any stop breaks. But the advice is to stop at least every 4 hours and have a 15-30 minute break and if tired always stop to sleep. Never drive when tired!
About 3 hours driving time.
385
288 miles
(80 miles)/(2 hours) = 40 miles/hour.
That would be 52 MPH.
About 3 hours driving time.
It travels 100 miles in 2.5 hours.
385
The average speed if an airplane travels 1364 miles in 5.5 hours is 248 miles/hr.
Divide the distance by the time to get the speed. The direction, of course, is north-east.
5.24 hours.
3,742 road miles and about 2 days 18 hours driving time.
288 miles
1.4:1 in favor of the train.
It travels 288 miles in 4 hours 30 minutes at that speed.
100 miles / 4 hours = 25 miles per hour.
(80 miles)/(2 hours) = 40 miles/hour.