Question

How does acceleration differ from velocity

Answer 1

Acceleration is the rate at which velocity changes,
and the direction in which it changes..

Answer 2

Any time that the sign (+ or -) of the acceleration is the same as the sign of the velocity, the object will speed up. If the signs are opposite, the object will slow down. Acceleration is a vector quantity. When either velocity or direction changes, there is acceleration (or deceleration).