Distance = Speed * Time
Time . . . . Distance
8:30 am . . . . 70 mi
9:30 am . . . . 140 mi
10:30 am . . . 210 mi
11:30 am . . . 280 mi
11:42 am . . . 294 mi
12:30 pm . . . 350 mi
12:42 pm . . . 364 mi
If the distance from Norfolk to New York is 364 miles, it will take 5 hours 12 minutes for the vehicle with an average speed of 70 mph to arrive in New York.
If a straight-line route of 294 miles is followed, it will take 3 hours 12 minutes.
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My map app shows the driving distance to be about 364 miles, and the straight-line distance to be about 294 miles. Both Norfolk and New York are big places, so the distance will vary depending on precise start and end points. Maintaining an average speed of 70 mph could be difficult either in the air or on the ground.