A velocity of 65 mph refers to the speed at which an object is moving in a particular direction. In this case, "65 mph north" indicates that the object is moving at a speed of 65 miles per hour in the northward direction. Velocity is a measure of both speed and direction.
Acceleration, on the other hand, refers to the rate at which an object's velocity changes over time. It is the change in velocity per unit of time. In the given information, there is no mention of acceleration.