Physics

The correct answer is D. Velocity is the speed of an object in a specific direction.

Option A, "the quickness of an object," is not a complete definition of velocity because it does not include the idea of direction. Velocity involves both the speed and the direction of an object's motion.

Option B, "the location of an object," is incorrect. While velocity is related to an object's location, it specifically refers to the rate of change of an object's position with respect to time, taking into account both the magnitude (speed) and the direction of motion.

Option C, "acceleration," is also incorrect. Acceleration refers to the rate of change of velocity, not velocity itself....