Answer:
The velocity is 10.26[mi/hr]
Step-by-step explanation:
In physics, the velocity is defined as the distance traveled by an object in a time interval.
Now we have:
x = distance = 15.4 [mi]
t = time = 1.5 [hr]
Therefore:
v = x/t
v = 15.4 / 1.5 = 10.26 [mi/hr]