What term describes the speed of an object at a particular moment in time?

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The correct term that describes the speed of an object at a particular moment in time is velocity. Velocity not only includes the speed of an object but also takes into consideration the direction of that speed. This makes velocity a vector quantity, providing complete information about the motion of the object at that specific moment. In contrast, speed itself is a scalar quantity that refers only to how fast an object is moving, without any indication of direction.

Acceleration refers to the rate of change of velocity over time rather than the speed at a specific moment. Distance measures the space an object has traveled but does not provide information about speed or direction at a specific moment. Therefore, in the context of describing motion accurately at a particular instant, velocity is the most appropriate term.

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