Question

speed in a specific direction
acceleration
the location of an object
the quickness of an object
what is velocity?

Explanation:

Velocity is a vector quantity. It has both magnitude (speed) and direction. Among the given options, "speed in a specific direction" correctly defines velocity. Acceleration is the rate of change of velocity. The location of an object is position. The quickness of an object is speed (a scalar quantity, only magnitude).

Answer:

speed in a specific direction