City B is northwest of City A and the 400 mile trip by car takes 8 hours. City B is exactly 320 miles NW of City A if able to travel in a straight line. What is the velocity of the car?

Respuesta :

Disregarding that the cities are 120 miles apart in an absolute straight line, because no road is straight, 
One can assume that velocity = distance / time 

V = 200 miles / 4 Hours 

V = 50 Miles / Hour

Thee velocity of the car is 40 mph NW