Answer:
91.7 mph west
Explanation:
The average velocity is the ratio between the displacement and the time taken:
[tex]v=\frac{d}{t}[/tex]
where d is the displacement and t the time taken.
First of all, we need to find the net displacement. We know that the car moves
200.0 miles west + 75.0 miles west = 275.0 miles west
While the total time taken is
[tex]t=2 h + 1 h = 3 h[/tex]
So now substituting into the equation above, we find the average velocity:
[tex]v=\frac{275.0}{3}=91.7 mph[/tex]
And the direction is the same as the displacement, so west.
